2> You can enter "regedit" during operation, open the registry editor and find the SFCDisable value in the right pane of [HKEY _ Local _ Machine \ Software \ Microsoft \ Windows NT \ Current Version \ Winlogon]. Its default setting is 0, that is, protected files will not be scanned after restart.
3> From the lower left corner-all programs-accessories-system tools-system restore can be solved.
4> hit the system disk and repair it in the following ways.
SFC is a system file checker, which is used to scan all protected system files and replace incorrect versions with correct Microsoft versions?
Command format:
SFC[/SCANNOW][/SCANONCE][/SCANBOOT][/REVERT][/purge cache][/CACHESIZE = x]
Parameter description
/SCANNOW scans all protected system files immediately.
/SCANONCE scans all protected system files at the next startup.
/SCANBOOT scans all protected system files every time it is started.
/REVERT returns the scan to the default settings.
/PURGECACHE clears the file cache.
/CACHESIZE=x sets the file cache size.
When using this command, you can run it by opening the command console, as shown below:
Start-run, enter command(98 and other systems) or cmd (systems above 2000) in it, and then you can use the sfc command introduced above.
Start running -cmd- and then enter-sfc.
Automatically scan protected files by default!
Will not be displayed.
It can only be done at the MS-DOS command prompt, and cannot be input during operation. In addition, you need a system CD with the same version.
Sfc/scannow is a system file checker running in dos mode of windowsd, which is used to repair damaged or modified system files.
Or view all the services installed in the system in the service list on the right side of the Service Manager window, double-click the name of the theme service, and then confirm to close the theme's properties dialog box in Start ... Right-click the name of the theme service, and then select Start to start the service immediately.
Sfc is a file checker for windows.
Scannow is just one of the parameters of sfc.
Generally speaking, when using sfc, for example, you can run sfc (system file check) by typing sfc /scannow, but in fact, by default, Windows file protection is always enabled. Only when the Dllcache folder is damaged or unavailable, you need to use sfc /scannow, sfc /scanonce or sfc /scanboot to repair the contents of the Dllcache directory.