
Fix Windows Defender Real-Time Protection Access Denied
You try to turn on Windows Defender real-time protection but get an 'access denied' message. This...

You try to turn on Windows Defender real-time protection but get an 'access denied' message. This...

If you see a 'port already allocated' error when starting a Windows Security-related service or a...

You're trying to send or receive email in Outlook, but you get an error about the SSL certificate...

You try to open Windows Defender Security Center or run a scan, but get an error: "Windows Defend...

When you open Microsoft Store and see 'Service unavailable' or 'Something went wrong' with error ...

If Outlook crashes repeatedly—freezing, closing without warning, or throwing errors—this checklis...