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Windows Vista problem

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New Judge | 17:08 Sat 09th Jan 2010 | Technology
3 Answers
I have recently encountered a problem with Vista.

An error message appears each time I boot up:

WINDOWS SOFTWARE PROTECTION

An Unauthorised change was made to Windows.

You will no longer receive notifications, including those about your licence or authorisation. Use the link below to find out how to fix your system.

Error: 0xC004D401
Description: The security processor system reported a system file mismatch error.


I have lost the ability to use a number of Windows application. Using the link, it suggests that some incompatible software has been installed, but I have added nothing recently.

Any ideas?
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click on the start button thingy, type CMD in the start search box at the bottom of the start menu, then right click on the icon for CMD that will show on the start menu and select "run as administrator" (enter your password if needed)

Once the command line window has opened type into it "sfc /scannow" and hit enter

Windows will now scan all important system files and restore any that have been changed back to default.

once completed run a full scan with your anti virus software.
Question Author
Thanks both.

Adopted both suggestions (bit of each) and already seeing some progress.

Cheers!

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