Checklists for software errors, setup, and tool workflows.

How to Restore Chrome Profile After a Crash

Symptoms of a Corrupted Chrome Profile

After a browser crash, you might see errors like '...

Chrome Extension Not Loading: Step-by-Step Fixes

You click the extension icon, but nothing happens. Or the extension is grayed out, missing from t...

Windows Update High Memory Usage Troubleshooting Checklist

If your computer slows down or the fan runs loudly after starting Windows Update, high memory usa...

Fix Windows Certificate Error 0x800b0109

When you see error code 0x800b0109 in Windows, it means the operating system cannot verify a digi...

Windows Update Cleanup Tool Not Removing Files: Fixes

You run Disk Cleanup, check "Windows Update Cleanup", and it seems to work—but the disk space doe...

Fix Chrome Proxy Authentication Failed Errors

When Chrome shows 'proxy authentication failed' or 'ERR_PROXY_AUTHENTICATION_FAILED', it usually ...