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

Chrome Sync Not Working After Disabling Extensions: Fixes

You disabled some Chrome extensions to troubleshoot a problem, and now sync has stopped working –...

How to Fix Nginx Upstream Connection Refused on Port 80

When nginx logs show "upstream connection refused" while connecting to port 80, it means ...

Fix Windows Update Service Not Running After Clean Boot

If you performed a clean boot to troubleshoot an issue and later found that Windows Update won...

How to Fix Git Detached HEAD in IntelliJ IDEA

If you see a message like “You are in ‘detached HEAD’ state” in IntelliJ IDEA, it means your work...

Windows 11 Update Stuck at 0%? How to Fix with DISM

If your Windows 11 update is stuck at 0%, the system file corruption is a common cause. The Deplo...

How to Fix Git Push Rejected: Non-Fast-Forward Merge