Checklists for software errors, setup, and tool workflows.

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3. Apply

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Latest checklists

If Windows Defender keeps crashing or turning itself off, a third-party antivirus is often the ca...

After a Windows update, you might see the error "Command Prompt service unavailable"

Fix 'Access Denied' When Running Commands on a Locked File
When you see Access is denied or Permission denied in Command Prompt wh...

How to Fix PowerShell Remoting Network Error
When you try to run Enter-PSSession or Invoke-Command against a remote ...

Fix Windows Update Assistant Not Working on Mac
If you're running Windows on a Mac via Boot Camp, Parallels, or another virtual machine, the Wind...

How to Fix Outlook Proxy Authentication Failed Error
You try to send or receive email in Outlook and see an error: "Proxy authentication failed"