none
Installed Datacenter want to downgrade to Standard

    Question

  • Is this still not supported in server 2012? I did about a weeks worth of working setting servers up thinking i was getting Datacenter keys turns out i was only provided with Standard keys.

    • Edited by JustusIV Monday, September 24, 2012 1:16 PM
    Monday, September 24, 2012 1:09 PM

Answers

  • Again, as stated earlier, there is no difference in the capability, so it really doesn't make a whole lot of sense in any situation I can think of.

    As the OP said, he already fully configured a Datacenter install, but only has licenses for Standard. So he needs to be able to convert his preexisting install to Standard. This is a valid use case, but it can't be done (unlike going from Standard to Datacenter). So it does make sense to want to do this.

    The only solution is a complete re-install, which seems unnecessary in Server 2012 given the only difference is just a licensing change for the # of VMs permitted.

    Tuesday, October 2, 2012 5:48 PM
  • Entering a Standard license key into a Datacenter install didn't work for me. I think you have to reinstall Standard from scratch. You can however upgrade from Standard to Datacenter.

    This is a real pain, and it's not obvious why you can't downgrade licensing.

    Thursday, September 27, 2012 5:31 PM

All replies

  • Hey Justus:

    Standard and Datacenter have feature parity in Windows Server 2012.  So no need to "downgrade" from a technical perspective.  The only licensing differences are in pricing and licensing rights for virtualization and/or number of physical processors - 2 VMs per license on Standard and unlimited with Datacenter. The Licensing & Pricing FAQ may provide additional context on the differences.

    - C

    Monday, September 24, 2012 2:54 PM
  • You can change your PRODUCT KEY from Server Manager, you can enter your "Standard product key".
    Thursday, September 27, 2012 5:09 PM
  • Entering a Standard license key into a Datacenter install didn't work for me. I think you have to reinstall Standard from scratch. You can however upgrade from Standard to Datacenter.

    This is a real pain, and it's not obvious why you can't downgrade licensing.

    Thursday, September 27, 2012 5:31 PM
  • Most likely a carryover from days gone by.  Previously, there were features enabled in the premium Editions that were not in the Standard Edition.  As a result, Microsoft has never allowed downgrading.  However, now that Standard and Datacenter are only different in licensing, it should be possible.  If Microsoft gets enough customers asking for it, I'm sure they would consider it.  However, I don't know how many customers would want to pay for a Datacenter license and then want to convert it to a Standard license.  I KNOW Microsoft won't refund the difference in the license cost, so the customer is just throwing money out the window.

    Again, as stated earlier, there is no difference in the capability, so it really doesn't make a whole lot of sense in any situation I can think of.


    tim

    Thursday, September 27, 2012 9:12 PM
  • This is extremely lame.....

    I don't want to rebuild my whole fail over cluster simply because i thought i was going to get datacenter keys and then only got standard keys.... If some features where different or something i could understand more but the ONLY feature difference is my key doesn't work....


    Friday, September 28, 2012 6:53 PM
  • Again, as stated earlier, there is no difference in the capability, so it really doesn't make a whole lot of sense in any situation I can think of.

    As the OP said, he already fully configured a Datacenter install, but only has licenses for Standard. So he needs to be able to convert his preexisting install to Standard. This is a valid use case, but it can't be done (unlike going from Standard to Datacenter). So it does make sense to want to do this.

    The only solution is a complete re-install, which seems unnecessary in Server 2012 given the only difference is just a licensing change for the # of VMs permitted.

    Tuesday, October 2, 2012 5:48 PM
  • Again, as stated earlier, there is no difference in the capability, so it really doesn't make a whole lot of sense in any situation I can think of.

    As the OP said, he already fully configured a Datacenter install, but only has licenses for Standard. So he needs to be able to convert his preexisting install to Standard. This is a valid use case, but it can't be done (unlike going from Standard to Datacenter). So it does make sense to want to do this.

    The only solution is a complete re-install, which seems unnecessary in Server 2012 given the only difference is just a licensing change for the # of VMs permitted.

    QFT :)
    Tuesday, October 2, 2012 8:11 PM
  • Dodged a bullet here and got datacenter keys... This would have taken weeks to correct.... there needs to be a supported way of doing this...

    Wednesday, October 3, 2012 5:38 PM
  • Feedback noted.  Thanks

    --Joseph [MSFT] http://blogs.technet.com/b/joscon/

    Tuesday, October 9, 2012 9:09 PM
    Moderator
  • I haven't tried this, but maybe this will work?

    DISM /online /Set-Edition: ServerStandard /ProductKey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /AcceptEula

    See also http://technet.microsoft.com/en-us/library/jj574204.aspx

    I just used this to license in-place a Standard Evaluation install (installed from the microsoft.com evaluation ISO) into a licensed Standard edition using our SA MAK. This was necessary, as my SA MAK was not accepted either via the dialogs or using 

    slmgr.vbs /ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX

    Maybe worth a try?

    Saturday, October 13, 2012 7:12 AM
  • I haven't tried this, but maybe this will work?

    DISM /online /Set-Edition: ServerStandard /ProductKey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /AcceptEula

    See also http://technet.microsoft.com/en-us/library/jj574204.aspx

    I just used this to license in-place a Standard Evaluation install (installed from the microsoft.com evaluation ISO) into a licensed Standard edition using our SA MAK. This was necessary, as my SA MAK was not accepted either via the dialogs or using 

    slmgr.vbs /ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX

    Maybe worth a try?

    Hi

    You can't use /Set-edition to go down to Standard - the only available target is Datacentre when you have installed Standard.

    Cheers, Steve

    Saturday, October 13, 2012 8:04 AM
  • on our case, we have to do a reinstall of the said machine.

    1. supplying standard keys did not work

    2. in-place "Upgrade" only allows Standard to Datacenter

    At least it was just a fresh install, so we didn't lose much.

    Monday, October 29, 2012 2:29 AM
  • Is there a way to do this now? 
    Friday, December 20, 2013 11:52 PM
  • I´d also liked to know if there is any way to downgrade. Would be an verry helpful feature for me.Or may and Repair-Intallation from cd can fix this?

    Friday, December 27, 2013 8:13 AM
  • This way is probably not supported, and I would not try it on something like a DC... but here is what I recently did to downgrade Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    Edit: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

    Key: EditionID

    Change To: ServerStandard

    Key: ProductName

    Change To: Windows Server 2012 Standard

    Note that in this example I am going to be "upgrading" to Server 2012 R2 Standard, so I put in Windows Server 2012 Standard as the ProductName, not Server 2012 R2 Standard.  After the upgrade, this key will change itself to proper version.

    Next mount or insert your Server 2012 installation media, run the installer.  Do not check for updates, I chose Server 2012 R2 Standard with gui as my OS, and pick Upgrade.

    It will go through the standard upgrade process, and you now have downgraded from Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    After that I ran slui 3 from command prompt, entered my Server 2012 R2 Standard product key, and activation went through.

    I'm about to test doing this on a DC, but honestly if you were to try this, I would demote the server, remove DNS and DHCP, then do the "downgrade". 

    Once again, I highly doubt this method is supported, so make sure you have a full backup of your data or VM.

    • Proposed as answer by Niels_k Wednesday, August 13, 2014 3:38 PM
    Sunday, January 26, 2014 6:12 PM
  • This way is probably not supported, and I would not try it on something like a DC... but here is what I recently did to downgrade Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    Edit: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

    Key: EditionID

    Change To: ServerStandard

    Key: ProductName

    Change To: Windows Server 2012 Standard

    Note that in this example I am going to be "upgrading" to Server 2012 R2 Standard, so I put in Windows Server 2012 Standard as the ProductName, not Server 2012 R2 Standard.  After the upgrade, this key will change itself to proper version.

    Next mount or insert your Server 2012 installation media, run the installer.  Do not check for updates, I chose Server 2012 R2 Standard with gui as my OS, and pick Upgrade.

    It will go through the standard upgrade process, and you now have downgraded from Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    After that I ran slui 3 from command prompt, entered my Server 2012 R2 Standard product key, and activation went through.

    I'm about to test doing this on a DC, but honestly if you were to try this, I would demote the server, remove DNS and DHCP, then do the "downgrade". 

    Once again, I highly doubt this method is supported, so make sure you have a full backup of your data or VM.

    I have tested this method to convert Windows 7 Enterprise to Professional successfully.

    Now I have to convert 2012 Datacenter to Standrard as I deployed SCCM 2012 on the trial version of Datacenter. I'm going to do this again on server now.


    Wednesday, February 19, 2014 1:07 AM
  • no method for downgrade only reinstall the o.s
    Wednesday, March 26, 2014 4:36 AM
  • This isn't a supported method to change editions.  If you need to downgrade your Windows editions, you need to reinstall the operating system to the edition you need.

    --Joseph [MSFT] http://blogs.technet.com/b/joscon/

    Wednesday, March 26, 2014 1:48 PM
    Moderator
  • I tried this, and it works for me:

    This way is probably not supported, and I would not try it on something like a DC... but here is what I recently did to downgrade Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    Edit: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

    Key: EditionID

    Change To: ServerStandard

    Key: ProductName

    Change To: Windows Server 2012 Standard

    Note that in this example I am going to be "upgrading" to Server 2012 R2 Standard, so I put in Windows Server 2012 Standard as the ProductName, not Server 2012 R2 Standard.  After the upgrade, this key will change itself to proper version.

    Next mount or insert your Server 2012 installation media, run the installer.  Do not check for updates, I chose Server 2012 R2 Standard with gui as my OS, and pick Upgrade.

    It will go through the standard upgrade process, and you now have downgraded from Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    After that I ran slui 3 from command prompt, entered my Server 2012 R2 Standard product key, and activation went through.

    I'm about to test doing this on a DC, but honestly if you were to try this, I would demote the server, remove DNS and DHCP, then do the "downgrade". 

    Once again, I highly doubt this method is supported, so make sure you have a full backup of your data or VM.

    Wednesday, April 23, 2014 10:43 AM
  • This way is probably not supported, and I would not try it on something like a DC... but here is what I recently did to downgrade Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    Edit: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

    Key: EditionID

    Change To: ServerStandard

    Key: ProductName

    Change To: Windows Server 2012 Standard

    Note that in this example I am going to be "upgrading" to Server 2012 R2 Standard, so I put in Windows Server 2012 Standard as the ProductName, not Server 2012 R2 Standard.  After the upgrade, this key will change itself to proper version.

    Next mount or insert your Server 2012 installation media, run the installer.  Do not check for updates, I chose Server 2012 R2 Standard with gui as my OS, and pick Upgrade.

    It will go through the standard upgrade process, and you now have downgraded from Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    After that I ran slui 3 from command prompt, entered my Server 2012 R2 Standard product key, and activation went through.

    I'm about to test doing this on a DC, but honestly if you were to try this, I would demote the server, remove DNS and DHCP, then do the "downgrade". 

    Once again, I highly doubt this method is supported, so make sure you have a full backup of your data or VM.

    Hello Derekcn,

    Thank you for posting this.  It worked like a champ!

    I changed the 2 registry keys you mentioned in your post, mounted my Server 2012 R2 Standard ISO, and proceeded with a upgrade of the OS from Windows Server 2012 Datacenter to Windows Server 2012 R2 Standard.

    This saved me a ton of time.  I had a Server 2012 2 Node Failover Cluster with many Hyper-V VM's running, and a very short Window of time to downgrade from Data Center and then Upgrade to 2012 R2.

    Interestingly enough, I completed the process with 2 Nodes, and they were both Server 2012 Data Center Cluster Nodes.  

    A bit of an aside, an upgrade of a Server 2012 Cluster Node to a Server 2012 R2 Cluster Node is not supported, but... 

    The upgrade of cluster nodes from 2012 to 2012 R2 can be done.  It is a bit involved and takes some doing, but in the end, doable and working great.

    Thanks again!

    Sunday, June 1, 2014 11:56 PM
  • Thanks!  Worked for me.  Ran Without demoting or removing DNS, DHCP, or other services but of course domain was down during that time.  No command prompt needed.

    regedit

    reboot

    run installer

    no update

    upgrade

    enter new key through gui


    Thursday, June 12, 2014 12:19 AM
  • Hello,

    the Datacenter Edition of Windows Server 2012/2012 R2 allowed you to downgrade Edition rights. it means you can for example install 10 VMs as a Standard Edition on the datacenter license but to do it, you need to have the media +key product for Standard Edition. for volume licensing customers, the Standard Edition is available on the VLSC to download it without to need the media and the key product.

    thanks

    diramoh

    Thursday, June 12, 2014 9:25 AM
  • Intstalled a new server and selected datacenter instead of standard and first found out at the end of the day. Now 1 hour later we have the server as a 2012 R2 Standard edition with all Hyper-v that was setup still functioning.

    I dindt need to run the slui 3 command because we use KMS.

    Wednesday, August 13, 2014 3:40 PM
  • You great Sir, are Saluted!!

    Interesting thought pattern around this solution, worked like a charm!

    Monday, September 22, 2014 7:52 AM
  • I know this is an ancient post but just for clarity it appears you cannot do it.

    I accidentally installed DC and have AD FS 3.0 all installed and configured. The customer also wanted the POC environment to resemble how it is going to in live. As the AD FS servers are going to be on VMware a DC license is going to be bound to each ESXi host.

    Although it will make no technical or functional difference I had to downgrade or build again....

    I tried;

    DISM /Online /Get-TargetEditions (this listed nothing, if I were upgrading I would see ServerDatacentre)

    then just in case I could force it;

    DISM /Online /Set-Edition:ServerStandard /ProductKey:xxxx-xxxx-xxxxx-xxxx-xxxx /AcceptEULA

    It came back with the error 50 and the message This Windows image cannot be upgraded to the edition of Windows that was specified. This is the only way I know how to change the edition so apologies if there is another way to do it.

    Ryan Betts

    blog.ryanbetts.co.uk

    Thursday, February 5, 2015 10:41 AM
  • Thanks Derekcn, this actually works! This is what the forums are for! :D
    Monday, February 9, 2015 2:38 PM
  • Niels_k

    Thank you so much. Saved me a lot of time.

    Friday, March 27, 2015 3:10 PM
  • This definitely works and I used it on a server with windows 2008R2 Datacentre. I then ran the process and upgrades to 2012 R2 Standard solved my issue.
    Friday, April 10, 2015 2:35 PM
  • Fantastic this saved me a few hours rebuilding a new server incorrectly deployed. 

    Thursday, August 20, 2015 3:34 PM
  • Thank´s for sharing! solved my issue, downgraded of windows 2012R2 DAtacenter with AD, DNS, DHCP and WINS to windows 2012 R2 standard edition. no issues at all.

    amartinez

    Friday, August 28, 2015 7:23 PM
  • This way is probably not supported, and I would not try it on something like a DC... but here is what I recently did to downgrade Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    Edit: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

    Key: EditionID

    Change To: ServerStandard

    Key: ProductName

    Change To: Windows Server 2012 Standard

    Note that in this example I am going to be "upgrading" to Server 2012 R2 Standard, so I put in Windows Server 2012 Standard as the ProductName, not Server 2012 R2 Standard.  After the upgrade, this key will change itself to proper version.

    Next mount or insert your Server 2012 installation media, run the installer.  Do not check for updates, I chose Server 2012 R2 Standard with gui as my OS, and pick Upgrade.

    It will go through the standard upgrade process, and you now have downgraded from Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    After that I ran slui 3 from command prompt, entered my Server 2012 R2 Standard product key, and activation went through.

    I'm about to test doing this on a DC, but honestly if you were to try this, I would demote the server, remove DNS and DHCP, then do the "downgrade". 

    Once again, I highly doubt this method is supported, so make sure you have a full backup of your data or VM.

    Great idea!!, work 10 points over 10 :-)
    Thursday, November 26, 2015 12:35 PM
  • Works and supported are two different things.  After doing this, hope that you never have to call for support on the system.

    . : | : . : | : . tim

    Friday, November 27, 2015 7:37 PM
  • This way is probably not supported, and I would not try it on something like a DC... but here is what I recently did to downgrade Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    Edit: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

    Key: EditionID

    Change To: ServerStandard

    Key: ProductName

    Change To: Windows Server 2012 Standard

    Note that in this example I am going to be "upgrading" to Server 2012 R2 Standard, so I put in Windows Server 2012 Standard as the ProductName, not Server 2012 R2 Standard.  After the upgrade, this key will change itself to proper version.

    Next mount or insert your Server 2012 installation media, run the installer.  Do not check for updates, I chose Server 2012 R2 Standard with gui as my OS, and pick Upgrade.

    It will go through the standard upgrade process, and you now have downgraded from Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    After that I ran slui 3 from command prompt, entered my Server 2012 R2 Standard product key, and activation went through.

    I'm about to test doing this on a DC, but honestly if you were to try this, I would demote the server, remove DNS and DHCP, then do the "downgrade". 

    Once again, I highly doubt this method is supported, so make sure you have a full backup of your data or VM.


    Great, this worked for me. I successfully downgraded my 2012 R2 Datacenter Vcenter to 2012 R2 Standard with your suggested method. I had to install 233 updates from my wsus afterwards, but everything works fine. Thanks and cheers from Germany
    Wednesday, September 7, 2016 7:41 AM
  • This way is probably not supported, and I would not try it on something like a DC... but here is what I recently did to downgrade Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    Edit: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

    Key: EditionID

    Change To: ServerStandard

    Key: ProductName

    Change To: Windows Server 2012 Standard

    Note that in this example I am going to be "upgrading" to Server 2012 R2 Standard, so I put in Windows Server 2012 Standard as the ProductName, not Server 2012 R2 Standard.  After the upgrade, this key will change itself to proper version.

    Next mount or insert your Server 2012 installation media, run the installer.  Do not check for updates, I chose Server 2012 R2 Standard with gui as my OS, and pick Upgrade.

    It will go through the standard upgrade process, and you now have downgraded from Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    After that I ran slui 3 from command prompt, entered my Server 2012 R2 Standard product key, and activation went through.

    I'm about to test doing this on a DC, but honestly if you were to try this, I would demote the server, remove DNS and DHCP, then do the "downgrade". 

    Once again, I highly doubt this method is supported, so make sure you have a full backup of your data or VM.


    Great, this worked for me. I successfully downgraded my 2012 R2 Datacenter Vcenter to 2012 R2 Standard with your suggested method. I had to install 233 updates from my wsus afterwards, but everything works fine. Thanks and cheers from Germany
    Great ! worked nicely ! Thanks a lot :)
    Wednesday, December 14, 2016 9:24 PM
  • This way is probably not supported, and I would not try it on something like a DC... but here is what I recently did to downgrade Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    Edit: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

    Key: EditionID

    Change To: ServerStandard

    Key: ProductName

    Change To: Windows Server 2012 Standard

    Note that in this example I am going to be "upgrading" to Server 2012 R2 Standard, so I put in Windows Server 2012 Standard as the ProductName, not Server 2012 R2 Standard.  After the upgrade, this key will change itself to proper version.

    Next mount or insert your Server 2012 installation media, run the installer.  Do not check for updates, I chose Server 2012 R2 Standard with gui as my OS, and pick Upgrade.

    It will go through the standard upgrade process, and you now have downgraded from Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    After that I ran slui 3 from command prompt, entered my Server 2012 R2 Standard product key, and activation went through.

    I'm about to test doing this on a DC, but honestly if you were to try this, I would demote the server, remove DNS and DHCP, then do the "downgrade". 

    Once again, I highly doubt this method is supported, so make sure you have a full backup of your data or VM.


    Works, but all windows updates gone.


    • Edited by SergIT Tuesday, December 20, 2016 10:35 AM
    Tuesday, December 20, 2016 10:33 AM
  • Derekcn,

    Thanks a million for this !. worked like charm and this is the only way I could change the edition which would have simply allowed for users to do out of the box. there are many real life scenarios we need this downgrade option (e.g. - what if we need to move some of the VMs to an new Host runs STD from a Box was running DTC).

    Sunday, January 15, 2017 8:09 AM
  • "what if we need to move some of the VMs to an new Host runs STD from a Box was running DTC"

    Moving a VM from a Datacenter host to a Standard host is no problem.  The physical host is what is licensed, not the VM, so there is no need to downgrade a 'license' in a VM.


    . : | : . : | : . tim

    Monday, January 16, 2017 2:34 PM
  • Hi,

    Not working for me !
    Server 2012 R2 Installer is still detecting Datacenter Edition and blocking upgrade process
    I also tried to change registry settings in WoW6432Node but it doesn't work

    Any help ?

    PS: I'm working with French release

    Wednesday, February 22, 2017 11:55 AM
  • Microsoft does not support such a downgrade.  So if having a supported system is important to you, the recommendation is to follow Microsoft's guidance and re-install the instance.

    . : | : . : | : . tim

    Wednesday, February 22, 2017 3:32 PM
  • Moving a VM from a Datacenter host to a Standard host is no problem.  The physical host is what is licensed, not the VM, so there is no need to downgrade a 'license' in a VM.


    . : | : . : | : . tim

    Can different editions of Windows VMs coexists in a single host license ? that's a mix up !
    Thursday, February 23, 2017 4:31 AM
  • "Can different editions of Windows VMs coexists in a single host license ? "

    Absolutely.  A system licensed for Datacenter covers any edition of current or previous versions of Windows Server.  A system licensed for Datacenter 2016 can legally have VMs runing Windows Server 2016 Datacenter, 2016 Standard, 2012 R2 Datacenter, 2012 R2 Standard, 2012 Datacenter, 2012 Standard, 2008 R2 Datacenter, 2008 R2 Enterprise, 2008 R2 Standard, 2008 Datacenter, 2008 Enterprise, 2008 Standard, 2003 etc.  This has nothing to do with activation; you will need the appropriate activation keys for each edition/version, but the license covers downgrade rights.


    . : | : . : | : . tim

    Thursday, February 23, 2017 2:47 PM
  • worked awesome.  thanks, Marlin

    I am not worried about support compatibility, purely a license hitch.   You are reinstalling the system, just not losing your time invested.

    I was running as member server.   My only hesitation would be a DC which i would demote before performing.

    Tuesday, June 27, 2017 4:09 PM
  • Any regrets in this thread following Derekcn solution? I noticed on the edition downgrade, PowerShell v5 reverted to PowerShell v4 as well as I had to reinstall all updates. Also, a two NIC team I had setup was removed. Perhaps all this is expected, just sharing my findings. 

    Wednesday, June 28, 2017 2:02 AM
  • Fantastic this worked for me... from Server 2012 R2 DataCenter to Server 2012 R2 Standard. Thank you Thank you... You saved me so much unnecessary work.
    Wednesday, January 31, 2018 3:36 AM
  • Hi _TowTone_

    months ago  i send a server to a branchoffice and i don´t know how or when but in my recently microsofto inventory i realized that i have a server with Windows Server 2016 Datacenter Edition. obviously my Chief told me what tha F....you wrong..and i have to fix it.  i only 1 hyper-v VM  and is  backed up with ALTARO. maybe i need to move on to the branchoffice and test  with the solution posted that a lot of engineers appreciated and they say that worked for them.

    can you share the steps if were different or you followed the steps exactly as posted was?

    maybe i can re-install the DVD because my VM is backed up but i want to try this

    i hope you cn help me

    Wednesday, February 21, 2018 11:51 PM
  • Hi frankko33

    Did you find a solution for your issue

    I have the same..; i install data center in place of standard edition :(

    shame...

    Thks if you can help me

    Wednesday, February 28, 2018 9:18 AM
  • I tried this, and it works for me:

    This way is probably not supported, and I would not try it on something like a DC... but here is what I recently did to downgrade Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    Edit: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

    Key: EditionID

    Change To: ServerStandard

    Key: ProductName

    Change To: Windows Server 2012 Standard

    Note that in this example I am going to be "upgrading" to Server 2012 R2 Standard, so I put in Windows Server 2012 Standard as the ProductName, not Server 2012 R2 Standard.  After the upgrade, this key will change itself to proper version.

    Next mount or insert your Server 2012 installation media, run the installer.  Do not check for updates, I chose Server 2012 R2 Standard with gui as my OS, and pick Upgrade.

    It will go through the standard upgrade process, and you now have downgraded from Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    After that I ran slui 3 from command prompt, entered my Server 2012 R2 Standard product key, and activation went through.

    I'm about to test doing this on a DC, but honestly if you were to try this, I would demote the server, remove DNS and DHCP, then do the "downgrade". 

    Once again, I highly doubt this method is supported, so make sure you have a full backup of your data or VM.

    Thanks! This works like a charm :)
    Thursday, April 5, 2018 12:23 PM
  • This way is probably not supported, and I would not try it on something like a DC... but here is what I recently did to downgrade Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    Edit: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

    Key: EditionID

    Change To: ServerStandard

    Key: ProductName

    Change To: Windows Server 2012 Standard

    Note that in this example I am going to be "upgrading" to Server 2012 R2 Standard, so I put in Windows Server 2012 Standard as the ProductName, not Server 2012 R2 Standard.  After the upgrade, this key will change itself to proper version.

    Next mount or insert your Server 2012 installation media, run the installer.  Do not check for updates, I chose Server 2012 R2 Standard with gui as my OS, and pick Upgrade.

    It will go through the standard upgrade process, and you now have downgraded from Server 2012 R2 Datacenter to Server 2012 R2 Standard.

    After that I ran slui 3 from command prompt, entered my Server 2012 R2 Standard product key, and activation went through.

    I'm about to test doing this on a DC, but honestly if you were to try this, I would demote the server, remove DNS and DHCP, then do the "downgrade". 

    Once again, I highly doubt this method is supported, so make sure you have a full backup of your data or VM.


    Supported or not, this method has worked for me too - I've successfully downgraded a DC, From Windows Server 2012 Datacenter To Standard (extra work required for the DC services - namely, I had to seize all the FSMO, PDC, RID, etc. roles manually by 1st disabling the fw due to Public nla profile & "helping" the KCC to
    "work it out").
    Wednesday, November 21, 2018 1:29 PM