
How to Enable Windows Defender After It Failed to Start
If Windows Defender won't start, you may see an error like "This app has been turned off" or "Win...
Software troubleshooting desk

If Windows Defender won't start, you may see an error like "This app has been turned off" or "Win...

When you see 'authentication failed' while running commands in Windows Server's command prompt, i...

If you reset Outlook settings and now your mail, calendar, or contacts won't sync, you're not alo...

You're working in Microsoft Teams when a message pops up: "Your token has expired" or "Authentica...

If Windows Search stops working—no results, missing files, or high CPU usage—reinstalling the fea...

You run your Python script and get ModuleNotFoundError for a package you’re sure you...