Checklists for software errors, setup, and tool workflows.

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Fix Windows Activation 504 Gateway Timeout Error

You try to activate Windows, but get a '504 Gateway Timeout' error. This usually means the activa...

Fix Microsoft Teams Proxy Error Not Connecting

If you see "proxy error" or "not connecting" in Microsoft Teams, it usually means the app can't r...

Fix Windows Defender Service Permission Denied Error in Windows 10

You see a 'permission denied' message when trying to start or interact with the Windows Defender ...

Fix Windows Command Prompt Permission Denied Error

You open Command Prompt, type a command, and get 'Access Denied' or 'Permission denied'. This oft...

Fix Windows Activation Command Error 0x80070002

When you try to activate Windows using the command line—for example, running slmgr /ato

Fix Windows Defender Real-Time Protection Turning Off
If you see a notification that Windows Defender real-time protection is off, or it keeps turning ...