1, Start-Run-Enter: regedit, and then press Enter.

2. Select My Computer, and then click File-Export-click Save with any name. The purpose of this is to back up the registry and avoid timely recovery after misoperation. The recovery method is to find the file you just saved, double-click it, and then select Allow Import.

3. Select "My Computer", press F3, then enter "xrhcf" and click "Find Next". When you find it, be sure to check whether it is a xrhcf.dll file, because the file name you gave is incomplete. If so, right-click the item and select Delete. "At this point, you can enter xrhcf.dll to search. After the result comes out, you should look at the numerical part behind, not just the file name. As long as there is xrhcf.dll in the file, no matter whether there is anything else written next to it (such as xrhcf.dll, load)! "

4, and then press F3-Delete until the prompt "No corresponding option found" appears.

5. Restart the computer to see if there is anything wrong with the system.

Note: If other serious problems occur, please restore the registry.