Checklists for software errors, setup, and tool workflows.

Fix Microsoft Store Authentication Failed Due to App Permissions

You try to sign in to the Microsoft Store and see "Authentication failed" or "Something went wron...

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...

Task Scheduler Not Working After System Restore: Fixes

After a system restore, Task Scheduler may stop working—tasks fail to run, the console shows erro...

Fix 'File Locked by Unknown Process' in Command Prompt

You try to delete, rename, or move a file, but Windows says it's locked by an unknown process. Th...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

Fix OneDrive Sync Not Starting After Windows 11 Update

After a Windows 11 update, you might find OneDrive simply won't start syncing. The icon may be mi...