
Troubleshooting
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, ...
Clear technical guides for everyday software errors, configuration problems, and productivity tools.

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

If you see an error like "The port is already allocated" when trying to install or updat...

If you see nginx: [emerg] open() "/path/to/file" failed (13: Permission denied) in y...

You try to send or receive email in Outlook and see an error: "Proxy authentication failed"

After a Windows update, you might open Microsoft Store and see a 404 Not Found error when trying ...

If Windows fails to activate and you see errors like '0x8007232B' or 'We can't activate Windows o...
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