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

Fix GitHub Actions Cache Action Permission Denied Error

Fix Windows Defender Blank Screen in Windows 10

If you open Windows Defender Security Center in Windows 10 and see nothing but a blank white or g...

Fix Windows Activation Not Connecting to Server

You try to activate Windows, but you see an error saying it can't connect to the activation serve...

Fix Windows Update Stuck Due to DNS Settings

If Windows Update is stuck checking for updates or fails with an error, your DNS settings might b...

Fix Task Scheduler '404 Not Found' After Windows Update

After a recent Windows update, you might open Task Scheduler and see a "404 Not Found" error when...

Fix Windows Update Settings Greyed Out – Step-by-Step

You open Settings > Update & Security, and everything under Windows Update is greyed out. Buttons...