Checklists for software errors, setup, and tool workflows.

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How to Fix Windows Defender 404 Not Found Error

If you see a "404 Not Found" error when opening Windows Defender, it often means a required file ...

How to Fix Microsoft Teams Dependency Conflict Error

When Microsoft Teams throws a dependency conflict error, it usually means a required component (l...

How to Fix 502 Bad Gateway in Command Prompt

If you see a 502 Bad Gateway error while using command prompt—for instance when ...

How to Fix Windows Defender Service Not Running

If you see a message that Windows Defender is not running or the security center shows it's off, ...

Fix Remote Desktop Version Mismatch After Update

After a Windows Update or RDP client update, you may see an error like “The remote computer r...

Fix Windows Search 504 Gateway Timeout After Update
After a Windows update, some users see a 504 gateway timeout when using Windows Search. This usua...