Knowledge base for software setup, errors, and daily tool work.

Fix Windows Update Black Screen After Restart

After installing a Windows update and restarting, a black screen (with or without a cursor) can b...

Resolving npm Dependency Conflicts After an Update

Fix Windows Search Token Expired Error 0x80090016

If you see the error “Windows Search Token Expired” with code 0x80090016, it usually means the se...

Fix Windows Activation Failed Due to Product Key Mismatch

You see "Windows activation failed due to product key mismatch" after entering a key or during an...

Check for Malware When Windows Activation Causes High CPU Usage

If your computer's CPU usage spikes after a Windows activation attempt, malware may be the culpri...