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This method shows you how to verify Windows Vista Integrity using Command Prompt
Please perform the following steps:

Please go to Pearl button (Start) and click on the Start Search
For more information about the change from Start to Pearl button click here
In the Command Prompt window please select, copy and paste the following command:

sfc /scannow

Please press Enter to execute

Note: This command, depending of your operating system, will ask for windows installation cd.
When you will write cmd you will see Command Prompt logo under the Programs, please right click on it
and choose Run as Administrator
Please confirm User Account Control pop-up
Windows Integrity
CMD Back Up Back Windows Vista Windows 7 Windows Xp