There is also a way to use SFC in the repair system

SFC (System Files Checker, System File Checker). Log in to Windows XP as an administrator, put the Windows XP installation CD into the optical drive, type the "SFC/SCANNOW" command in the "Command Prompt" window and press Enter, and the "System File Checker" starts automatically scanning the system files without any intervention from you. However, it is important to remind everyone that although "SFC" under Windows 2000/XP is much smarter than "SFC" under Windows 98, if you want to run it normally, you still need to pay attention to the following two issues:

1. Before running "SFC", you must put the Windows XP installation disc into the optical drive, otherwise you will be prompted to insert the installation disc during the scanning process. Even if you insert the installation disc, the system will still cause an error message.
2. When using "System File Checker" under Windows 2000/XP, correct parameters must be added to run normally. We can view these parameters by typing the "SFC" command in the "Command Prompt" window.
3. Since the "SFC" command under Windows 2000/XP is fully executed automatically, we cannot directly know which system files have been repaired. However, we can indirectly obtain the repair of system files through the following methods: open "Control Panel → Administrative Tools → Event Viewer → System" in turn, select the event when running "SFC" from the list, right-click the event and view its properties.