How to Fix Git Detached HEAD State and Undo Changes
You run git status and see something like "HEAD detached at abc123". This ha...
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All notesFixing Nginx Upstream Connection Refused on Port 443
You see "upstream connection refused" in your Nginx error log when proxying requests to p...
Nginx Upstream Connection Refused: Diagnosis and Fixes
When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...
Windows Search Index Not Finding Files: How to Fix
Windows Search stops finding files for a variety of reasons. The index might be corrupted, settin...
Fix Chrome Extensions Not Loading Configuration
You install a Chrome extension, configure it carefully, and then—nothing. The extension icon is g...
How to Fix Windows Update Service Not Running
If Windows Update won't start or you see an error like "Windows Update cannot check for u...
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