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Safe mode access RRS feed

  • Question

  • Hi everybody

    How can we restrict the safe mode access for some users only ?       (policy based)

    Tanx


    • Edited by MainAdmin Monday, October 1, 2012 6:18 PM
    Monday, October 1, 2012 6:16 PM

Answers

  • Hi,

    follow the below steps.

    Follow the following steps to disable the Safe Mode :
    
    •If you have installed the operating system in Windows in C drive, just type this command in run menu attrib -r -s -h -a c:\ntldr. If you have installed the Operating system in D drive, change the command to d:\ntldr.
    •Then backup the NTLDR file in C drive with another name. You can do that by copying and pasting to the same location to get a new file “Copy of NTLDR”.
    •Download this free portable HexEditor.(http://newdata.box.sk/neworder/disedit/hexedit.zip)
    •Extract the HexEdit.exe and run it.
    •Then go to file > Open and choose C:\ drive on the right hand side and look for ntldr file on the left box. Select the ntldr file and click OK.
    •Scroll down and look for the line 00000770 and change the values 0f 85 09 to 90 90 90.
    •Click file and save.
    •Then close the HexEdit.
    •Then type this command attrib +r +s +h +a c:\ntldr in Run menu.
    •All it is done.
    
    Before you are doing this, you have to remember that you can’t access the keyboard; therefore, you can’t select an operating system from multiple Operating systems. If you want to enter the safe mode, use windows installation disc for recovery console and rename the “Copy of ntldr” file to ntldr. This way you can use the F8 key again. 


    Guowen Su
    Cisco Certified Network Associate
    Cisco Certified Internetwork professional - MPLS
    Certified Information Systems Security Professional
    Microsoft Partner Network 2011
    Microsoft Certified Professional
    Microsoft Certified Systems Administrator:Security
    Microsoft Certified Systems Engineer: Security
    Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration
    Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration
    Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration
    Microsoft Certified Technology Specialist: Windows 7, Configuring
    Microsoft Certified IT Professional: Enterprise Administrator
    Microsoft Certified IT Professional: Server Administrator
    Certified Ethical Hacker
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    Certified Sonicwall Security Administrator
    Microsoft Geeks

    • Proposed as answer by Soh.M Tuesday, October 2, 2012 2:33 AM
    • Marked as answer by Kevin Remde Saturday, December 1, 2012 1:37 PM
    Tuesday, October 2, 2012 2:32 AM

All replies

  • Hi,

    follow the below steps.

    Follow the following steps to disable the Safe Mode :
    
    •If you have installed the operating system in Windows in C drive, just type this command in run menu attrib -r -s -h -a c:\ntldr. If you have installed the Operating system in D drive, change the command to d:\ntldr.
    •Then backup the NTLDR file in C drive with another name. You can do that by copying and pasting to the same location to get a new file “Copy of NTLDR”.
    •Download this free portable HexEditor.(http://newdata.box.sk/neworder/disedit/hexedit.zip)
    •Extract the HexEdit.exe and run it.
    •Then go to file > Open and choose C:\ drive on the right hand side and look for ntldr file on the left box. Select the ntldr file and click OK.
    •Scroll down and look for the line 00000770 and change the values 0f 85 09 to 90 90 90.
    •Click file and save.
    •Then close the HexEdit.
    •Then type this command attrib +r +s +h +a c:\ntldr in Run menu.
    •All it is done.
    
    Before you are doing this, you have to remember that you can’t access the keyboard; therefore, you can’t select an operating system from multiple Operating systems. If you want to enter the safe mode, use windows installation disc for recovery console and rename the “Copy of ntldr” file to ntldr. This way you can use the F8 key again. 


    Guowen Su
    Cisco Certified Network Associate
    Cisco Certified Internetwork professional - MPLS
    Certified Information Systems Security Professional
    Microsoft Partner Network 2011
    Microsoft Certified Professional
    Microsoft Certified Systems Administrator:Security
    Microsoft Certified Systems Engineer: Security
    Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration
    Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration
    Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration
    Microsoft Certified Technology Specialist: Windows 7, Configuring
    Microsoft Certified IT Professional: Enterprise Administrator
    Microsoft Certified IT Professional: Server Administrator
    Certified Ethical Hacker
    Computer Hacking Forensics Investigator
    Certified Sonicwall Security Administrator
    Microsoft Geeks

    • Proposed as answer by Soh.M Tuesday, October 2, 2012 2:33 AM
    • Marked as answer by Kevin Remde Saturday, December 1, 2012 1:37 PM
    Tuesday, October 2, 2012 2:32 AM
  • Hi

    Thank you for your attention but we need policy based solution or third party software  because CIO don't allow change any part of OS

    Best regards


    • Edited by MainAdmin Friday, October 5, 2012 7:34 AM
    Thursday, October 4, 2012 8:49 PM