Windows 7 Ultimate system file corruption can not be repaired how to solve

1. First enter cmd in the Run dialog box, press Enter to open the command prompt, enter the command “Open/Snow/Scannow” in the command prompt window that opens, and press Enter;

2 The system will start to scan and repair the damaged system files, including the Taskmgr.exe file;

3. After the command completes the scan and restarts, it will be in the "C:WINDOWSsystem32dllcache" file. The Taskmgr.exe file is generated, and a Taskmgr.exe file is automatically copied in the folder "lowsSystem32", which can be fixed. The parameters of the

command are as follows:

/scannow: Scan all protected system files immediately;

/scanonce: scan all protected system files at once;

/purgecache: Immediately clear “Windows file protection ” cache the file and scan all protected system files;

/cachesize=x: set “Windows file protection file cache size in megabytes; /scanboot: each time When Kai scan all protected system files;

/revert: Returns the scan to the default operation;