Windows 7 Error code 0x490: A patch is preventing the system from starting.

 

I installed Windows 7 Ultimate as an upgrade to Windows Vista Home Premium on HP notebook, 32 bit.  It was successful.  Then installed Microsoft Office Home and Business 2010 as an upgrade to Microsoft Office 2007; and encountered an error during setup (Error 1311).  I downloaded a Microsoft Fixit solution from Microsoft help, and computer and programs worked.  Next day, turned on the computer and got a blue screen.  Ran Startup repair a couple of times and not able to open Windows 7.  Repair message:  "Root cause found:  A patch is preventing the system from starting.  Repair action: System files integrity check and repair result failed; Error Code = 0x490."  I have tried other solutions recommended on this forum, but not successful yet.  Help to resolve this problem would be much appreciated.  Computer, windows and office programs were working well together before installation of Windows 7 and Office 2010.   ...

Answer
Answer

Hi,

Method 1:

Step 1: Try booting the computer in safe mode and check.

Start your computer in safe mode

http://windows.microsoft.com/en-US/windows7/Start-your-computer-in-safe-mode

Step 2: Perform a system restore to the date when it was working fine.

System Restore

http://windows.microsoft.com/en-US/windows7/products/features/system-restore

Note: If system restore is performed in safe mode, the changes cannot be undone.

Method 2:

Step 1: Boot to system recovery options.

What are the system recovery options in Windows 7?

http://windows.microsoft.com/en-US/windows7/What-are-the-system-recovery-options-in-Windows-7

Note: Expand “To open the System Recovery Options menu using the Windows 7 installation disc or a USB flash drive, or a system repair disc” section in the above article and follow the steps.

Step 2: Perform a system restore to a date when it was working fine.

From the list of tools, available in the Windows Recovery Environment, select System restore and follow the wizard.

Note: If system restore is performed in Windows Recovery Environment, the changes cannot be undone.

Hope this helps.

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Last updated March 5, 2020 Views 7,203 Applies to: