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

Fix Windows Defender Blank Screen in Safe Mode

You boot into Safe Mode to run a malware scan, but Windows Defender shows nothing—just a blank wh...

Windows Activation for Ubuntu Installation Guide

You installed Ubuntu alongside Windows and now Windows shows it's not activated. This is a known ...

Fix Microsoft Teams Auto Start Not Working on Mac

You add Teams to your Mac's login items, but it doesn't launch automatically when you log in. Thi...

Fix PowerShell Access Denied for Set-ExecutionPolicy

When you try to change the execution policy in PowerShell with Set-ExecutionPolicy a...

Fix Windows Security Error 0x80070643 on Ubuntu Dual Boot

If you see error code 0x80070643 when running Windows Security or Windows Update on a dual-boot s...

Fix GitHub Actions Cache Action Permission Denied Error