Device Manager prompts an unknown device that the driver installation class is invalid or does not exist

Q: Device Manager prompts an unknown device that the driver installation class is invalid or does not exist

A:

According to the corresponding device guide, go to the normal system to find the registry:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class

Then import this entry into the system registry of the computer in question;

Then go back to the device Manager, right-click the unknown device, and select "Update driver software.

Click on "Automatically search for updated driver software".

Then you can finish updating the driver

This will allow the device to function properly and also display properly in the device manager.

*If your computer has an unknown device prompting an invalid or non-existent driver installation class, you can follow the steps above to resolve the issue.