Another utility in Windows to ensure system security

In Windows, sfc.exe is a utility used to verify system file integrity and repair system files. In Windows XP, the function is more powerful: we can also use this tool to restore the function, in Windows XP, the System File Checker can scan all protected system files to verify their version, you can also set the File Cache size, clear the File Cache, and refill the "% SystemRoot % \ System32 \ Dllcache" folder.

Enable "System File Checker" in Windows XP. First, Run "command prompt": click "Start> all programs → attachments → command prompt ", or click the "Start> Run" command, type "cmd" in the command line, and press the Enter key. In the "command prompt" window, type "Sfc" at the cursor prompt and press the Enter key. The prompt shown in is displayed.

For example, if we type "Sfc/SCANNOW" and press the Enter key, the "System File Checker" will start to check whether the current system file is damaged and the version is correct. If an error is found, the program requires you to insert a Windows XP installation CD to fix or replace an incorrect file. If the Dllcache folder is damaged or unavailable, you can use the "Sfc/scanonce" or "Sfc/scanboot" command to fix the folder content to ensure system security and stability.