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

Fix Windows Security Authentication Error 0x80070035

Firefox Profile Missing Troubleshooting Checklist

When Firefox starts but shows none of your bookmarks, passwords, or extensions, the profile may b...

OpenVPN Connection Failed: Check Firewall Settings

You see "connection failed" in your OpenVPN client log. The server is reachable, but the handshak...

Fix ERR_CERT_AUTHORITY_INVALID in Chrome

When Chrome shows ERR_CERT_AUTHORITY_INVALID, it means the browser cannot verify...

Fix OneDrive Blank Screen Not Loading Issue

You open OneDrive and see a blank white or gray screen instead of your files and folders. The app...

Checklist for Fixing Task Scheduler Invalid Configuration

When Task Scheduler throws an 'invalid configuration' error, a task won't run. This often happens...