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

Nginx 502 Bad Gateway: Troubleshooting Checklist

If you're seeing a 502 Bad Gateway from nginx, it usually means nginx can't reach the upstream se...

OneDrive Sync Module Missing After Update: How to Restore It

After a Windows update, you might notice the OneDrive sync module (the cloud icon in the system t...

Fix Windows Activation Service Unavailable Without Product Key

You see 'Windows activation service unavailable' and you don't have the product key. This usually...

Fix 'Windows Security Authentication Failed' for Domain Credentials

How to Fix slmgr.vbs High Memory Usage During Windows Activation

If you notice that slmgr.vbs is using a lot of memory (often 100 MB or more) on your...

Setup Chrome Profile Download Location on Windows

When you download files in Chrome, they go to a default folder. But if you use multiple Chrome pr...