Checklists for software errors, setup, and tool workflows.

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Fix Docker Nginx 502 Bad Gateway After Restart

After restarting your Docker containers, you might see a 502 Bad Gateway error when accessing you...

Windows Security App Not Working After Update: Fixes

After a Windows update, the Windows Security app may fail to open, show a blank window, or displa...

Chrome Sync Stuck on Waiting for Sync: Practical Fixes

You open Chrome, click the profile icon, and see the never-ending 'Waiting for sync' mess...

Fix Windows Explorer Restarting After Login

If Windows Explorer keeps restarting after you log in, you’ll see the desktop flash, icons disapp...

Fix Git 'index.lock file exists' Error

When you see the error fatal: Unable to create 'path/.git/index.lock': File exists....

Fix Git SSL Certificate Problem on Windows: Unable to Get Local Issuer
If you see fatal: unable to access 'https://...': SSL certificate problem: unable t...