Sfc/scannow - > To check the System files

Following the installation or the desinstallation of programs, system files can be modified. The software in question perhaps crushed them with its own files, less recent, or removed them while désinstallant itself. A DLL missing for example can cause many disfonctionnements, and to find a DLL in its version of origin is not always obvious.

The utility SFC, System Spins Checker, deals with checking the modified system files of Windows and replacing them.
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The program is already installed in Windows, you will need all the same your CD of installation.
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To start/Carry out then to type cmd
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In the window of invites, to use the order sfc /scannow to begin the checking immediately
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Windows can require to insert CD of installation:
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SFC starts has to check the system files, the process does not consume resources badly:
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There exist other orders for the use of SFC, here some syntaxes:

SFC /SCANNOW : To check the System files protected immediately
SFC /SCANONCE: To check all the System files protected once with next starting
SFC /CACHESIZE: The size of the mask of the files defines.
SFC /SCANBOOT: To check all the System files protected with each starting
SFC /CANCEL: Cancel all the checks on standby protected System files
SFC /ENABLE: Activate the File protection Windows for a normal functioning.
SFC /QUIET: Replace all the files of incorrect version without notification.
SFC /PURGECACHE: Vacuum the mask of the files and checks the System files protected immediately.