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

Fixing GitHub Actions Permission Denied for Git Commands

Fix 'Windows Activation Command Not Found' by Checking System Files

When you run slmgr.vbs or cscript slmgr.vbs to activate Windows and get...

Fix Windows Security Migration Error 0x80070005

When migrating Windows security settings or using tools like the Security Configuration Wizard, y...

Fix BitLocker DNS Error: Unable to Contact Key Server

If you see "BitLocker DNS error: unable to contact key server" when trying to recover a BitLocker...

How to Reinstall the Windows Security Module

If Windows Security won't open, shows errors, or you see "This app has been turned off" messages,...

How to Fix DNS Probe Finished NXDOMAIN on Chrome (IPv4/IPv6)

You're browsing in Chrome and suddenly see "DNS probe finished NXDOMAIN" — meaning the domain nam...