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How can I fix shadow copy problems in Windows Backup?

    Question

  • How can I get my backups to complete correctly?

    My backups used to work fine, but now they always fail with:

    Backup did not complete successfully because a shadow copy could not be created. Free up disk space on the drive that you are backing up by deleting unnecessary files and then try again.

    In the event log. See below for more event log details. Years ago when I first installed Windows 7 backup would always fail because a shadow copy could not be created. I finally traced the problem to the fact that Windows 7 Setup created the System Reserved partition too small (100 MB) and I finally fixed the problem by increasing the size to 200 M. For years I have not had a problem with backups until recently.

    My System Reserved partition is currently 200 MB, with 126 MB free.
    My C: partition is currently 500 GB with 276 GB free.

    I cannot understand why there is not enough space, but the finer detail in the event log is:

     

    The creation of a shadow copy has timed out. Try this operation again. (0x81000101)
    01010081990500003F0900005B090000420ED1665C2BEE174B64529CB14610EA71000000

    Why is it timing out? Is there a place I can configure a longer timeout period? What other troubleshooting can I do?

    - System
    - Provider
    [ Name] Windows Backup
    - EventID 4100
    [ Qualifiers] 0
    Level 2
    Task 0
    Keywords 0x80000000000000
    - TimeCreated
    [ SystemTime] 2011-07-25T08:12:18.000000000Z
    EventRecordID 44939
    Channel Application
    Computer Gemini.ca.kodak.com
    Security
    - EventData
    The creation of a shadow copy has timed out. Try this operation again. (0x81000101)
    01010081990500003F0900005B090000420ED1665C2BEE174B64529CB14610EA71000000

    Binary data:

    In Words

    0000: 81000101 00000599 0000093F 0000095B
    0008: 66D10E42 17EE2B5C 9C52644B EA1046B1
    0010: 00000071

    In Bytes

    0000: 01 01 00 81 99 05 00 00 ...™...
    0008: 3F 09 00 00 5B 09 00 00 ?...[...
    0010: 42 0E D1 66 5C 2B EE 17 B.Ñf\+î.
    0018: 4B 64 52 9C B1 46 10 EA KdRœ±F.ê
    0020: 71 00 00 00 q...


    Eric Kolotyluk - software developer, music DJ, swing dancer
    Monday, July 25, 2011 1:37 PM

Answers

  • My c: partition is 500 GB, 276 free.

    I've deleted all my old backups and started a fresh backup from scratch.

    Cheers, Eric


    Eric Kolotyluk - software developer, music DJ, swing dancer
    Monday, July 25, 2011 6:49 PM

All replies

  • "Eric Kolotyluk" wrote in message news:b4764e75-79fd-4055-9909-410bcf4a4956...

    How can I get my backups to complete correctly?

    My backups used to work fine, but now they always fail with:

    Backup did not complete successfully because a shadow copy could not be created. Free up disk space on the drive that you are backing up by deleting unnecessary files and then try again.

    In the event log. See below for more event log details. Years ago when I first installed Windows 7 backup would always fail because a shadow copy could not be created. I finally traced the problem to the fact that Windows 7 Setup created the System Reserved partition too small (100 MB) and I finally fixed the problem by increasing the size to 200 M. For years I have not had a problem with backups until recently.

    My System Reserved partition is currently 200 MB, with 126 MB free.
    My C: partition is currently 500 GB with 276 GB free.

    I cannot understand why there is not enough space, but the finer detail in the event log is:

     

    The creation of a shadow copy has timed out. Try this operation again. (0x81000101)
    01010081990500003F0900005B090000420ED1665C2BEE174B64529CB14610EA71000000

    Why is it timing out? Is there a place I can configure a longer timeout period? What other troubleshooting can I do?

    - System
    - Provider
    [ Name] Windows Backup
    - EventID 4100
    [ Qualifiers] 0
    Level 2
    Task 0
    Keywords 0x80000000000000
    - TimeCreated
    [ SystemTime] 2011-07-25T08:12:18.000000000Z
    EventRecordID 44939
    Channel Application
    Computer Gemini.ca.kodak.com
    Security
    - EventData
    The creation of a shadow copy has timed out. Try this operation again. (0x81000101)
    01010081990500003F0900005B090000420ED1665C2BEE174B64529CB14610EA71000000

    Binary data:

    In Words

    0000: 81000101 00000599 0000093F 0000095B
    0008: 66D10E42 17EE2B5C 9C52644B EA1046B1
    0010: 00000071

    In Bytes

    0000: 01 01 00 81 99 05 00 00 ...™...
    0008: 3F 09 00 00 5B 09 00 00 ?...[...
    0010: 42 0E D1 66 5C 2B EE 17 B.Ñf\+î.
    0018: 4B 64 52 9C B1 46 10 EA KdRœ±F.ê
    0020: 71 00 00 00 q...


    Eric Kolotyluk - software developer, music DJ, swing dancer

    You should NOT be using the System Reserved partition for ANYTHING - it's called 'Reserved' for a reason, and is there purely for use when Windows first boots.
     
    You need to shrink your current C: partition to about 400GB, and create a new partition for your backups - or preferably, use a different (better yet, external) drive for them.
     

    --


    Noel Paton | Nil Carborundum Illegitemi | CrashFixPC | The Three-toed Sloth
    Monday, July 25, 2011 2:26 PM
  • @Noel

    I do not use the System Reserved partition for anything - but when Windows backup creates a system image it also backs up that partition. In the past I have had problems because that partition was too small, and there was not enough room for shadow copies. After I increased that partition from the default of 100 MB to 200 MB, I had no further problems of that sort. I was not sure if this was causing a problem again.

    I use an external USB drive as my backup destination, it has 965 GB free, so I cannot see why there is a problem with the size of my C: partition.

    Basically I cannot fathom what Windows backup is complaining about because the diagnostic messages are so poor. It is telling me two things:

    1. Backup did not complete successfully because a shadow copy could not be created. Free up disk space on the drive that you are backing up by deleting unnecessary files and then try again. [somehow this does not seem to be the actual problem as there is plenty of room on the drive being backed up]
    2. The creation of a shadow copy has timed out. Try this operation again. [it does not matter how many times I retry my backups, I always get this same message]

    Cheers, Eric


    Eric Kolotyluk - software developer, music DJ, swing dancer
    Monday, July 25, 2011 4:29 PM
  • "Eric Kolotyluk" wrote in message news:4468d90e-e6e1-48c0-a0e0-dfe701d7454d...

    @Noel

    I do not use the System Reserved partition for anything - but when Windows backup creates a system image it also backs up that partition. In the past I have had problems because that partition was too small, and there was not enough room for shadow copies. After I increased that partition from the default of 100 MB to 200 MB, I had no further problems of that sort. I was not sure if this was causing a problem again.

    I use an external USB drive as my backup destination, it has 965 GB free, so I cannot see why there is a problem with the size of my C: partition.

    Basically I cannot fathom what Windows backup is complaining about because the diagnostic messages are so poor. It is telling me two things:

    1. Backup did not complete successfully because a shadow copy could not be created. Free up disk space on the drive that you are backing up by deleting unnecessary files and then try again. [somehow this does not seem to be the actual problem as there is plenty of room on the drive being backed up]
    2. The creation of a shadow copy has timed out. Try this operation again. [it does not matter how many times I retry my backups, I always get this same message]

    Cheers, Eric


    Eric Kolotyluk - software developer, music DJ, swing dancer

    Sorry - I misunderstood your situation :)
    How big are the backups created on the target drive?
    If you are doing a Full System backup each time, it will very quickly run the drive out of space (how much room is there currently?, in how many backups?)

    --


    Noel Paton | Nil Carborundum Illegitemi | CrashFixPC | The Three-toed Sloth
    Monday, July 25, 2011 4:37 PM
  • @Noel

    According to Windows backup, the backup size is 618 GB, and my backup drive has 965 GB free.

    I am using the default settings for Windows backup, which includes the system image and incremental backups.

    I currently only have two previous backups (I just deleted one old one to make more space).

    Cheers, Eric


    Eric Kolotyluk - software developer, music DJ, swing dancer
    Monday, July 25, 2011 4:47 PM
  • "Eric Kolotyluk" wrote in message news:8125395c-af75-42da-9467-40c20bc45477...

    @Noel

    According to Windows backup, the backup size is 618 GB, and my backup drive has 965 GB free.

    I am using the default settings for Windows backup, which includes the system image and incremental backups.

    I currently only have two previous backups (I just deleted one old one to make more space).

    Cheers, Eric


    Eric Kolotyluk - software developer, music DJ, swing dancer

    What size is you C: partition - and how much data is in it? How much has changed since the last incremental?
    Check that you haven't been trying to backup the backup (done it myself once or twice!)  :)
     
     

    --


    Noel Paton | Nil Carborundum Illegitemi | CrashFixPC | The Three-toed Sloth
    Monday, July 25, 2011 5:15 PM
  • My c: partition is 500 GB, 276 free.

    I've deleted all my old backups and started a fresh backup from scratch.

    Cheers, Eric


    Eric Kolotyluk - software developer, music DJ, swing dancer
    Monday, July 25, 2011 6:49 PM
  • "Eric Kolotyluk" wrote in message news:d82604a0-78a9-47ff-8aff-ccd60822b178...

    My c: partition is 500 GB, 276 free.

    I've deleted all my old backups and started a fresh backup from scratch.

    Cheers, Eric


    Eric Kolotyluk - software developer, music DJ, swing dancer

    That's one way to sort the problem :)
    Good luck .

    --


    Noel Paton | Nil Carborundum Illegitemi | CrashFixPC | The Three-toed Sloth
    Monday, July 25, 2011 7:18 PM
  • Hi Eric,

     

    I would like to verify if the issue is resolved after deleting all old backup files?

     

    If not, you can verify the volume shadow copy service, perform clean boot, only back up file and folder without system image, turn off system restore, then turn it back and create a restore point manually.

     

    Best Regards,

    Niki


    Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
    Wednesday, July 27, 2011 10:00 AM
    Moderator
  • So my last backup appears to have completed, although there was a warning that some files were skipped. According to the event log, they were two directories that PostgreSQL uses that may have been transient.

    The important thing is that this time there are no messages about shadow copies - finally.

    Cheers, Eric


    Eric Kolotyluk - software developer, music DJ, swing dancer
    Wednesday, July 27, 2011 3:52 PM