
Fix Windows Defender Not Starting Due to Antivirus Conflict
You open Windows Security and see a message that Defender is turned off or not starting. The most...
Software troubleshooting desk

You open Windows Security and see a message that Defender is turned off or not starting. The most...

You see 'Activating' in Settings > System > Activation, but it never finishes. This is a common g...

If you see a message that the Windows Search service keeps stopping, or your file searches sudden...

If you're seeing a Windows activation error that says something like "We can't activate Windows o...

When you see error 0x800704ec in Windows Defender (now called Microsoft Defender Antivirus), it u...

After a Windows or Microsoft 365 update, Outlook may fail to open—no window appears, or it crashe...