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

Fix Windows Security Not Starting Due to Third-Party Antivirus

If Windows Security (formerly Windows Defender) refuses to start or shows a blank screen, a third...

PowerShell Stuck on Executing Policy: Fixes That Work

When you run a PowerShell script and see 'Executing policy' with no progress or error, the execut...

Fix Windows 10 Product Key Not Working After Hardware Change

You replaced a major component—often the motherboard—and now Windows 10 says your product key isn...

Fix Command Prompt Not Recognizing Commands

Fix Windows Update Authentication Failed Due to Group Policy

You try to run Windows Update and get an error like "Authentication failed" or "0x80070005" – and...

Fix NVM Not Found in Git Bash on Windows