Once you have successfully performed the and cleanup, follow these tips to avoid future corruption:
Windows Defender will flag the cleaner because it deletes registry keys. This is a false positive. Temporarily turn off Real-time protection.
Below is a safe, detailed method to obtain and run a DiagBox Cleaner. Note: We do not host any files. We guide you to legitimate sources.
If you have a working activation, always back up your APPDIAG.SYS file from C:\AWRoot\bin\fi\ before cleaning. Critical Safety Warning