Checklists for software errors, setup, and tool workflows.

Fix Windows Defender File Locked During Scan

You run a Windows Defender scan and it reports that a file is locked and can't be scanned. This i...

Fix Git Clone Permission Denied (publickey) on Bitbucket

You try to clone a Bitbucket repository and see:

Permission denied (publickey).
fatal: Co...

Fix Windows Update Connection Timeout Due to Firewall

If Windows Update fails with a connection timeout error, the problem is often in your firewall or...

How to Fix Windows Update That Failed to Install Manually

You click 'Install now' on a Windows update, wait through the progress bar, and then see 'Update ...

How to Start the Windows Update Service When It Stops

If Windows Update isn't working, the first thing to check is whether the Windows Update service i...

Windows Security Version Mismatch: Troubleshooting Checklist

If you see an error message saying Windows Security has a version mismatch, or the Security Cente...