
Fix Windows Defender Version Mismatch After Update
After a Windows update, you might see a message that Windows Defender (Microsoft Defender Antivir...
Software troubleshooting desk

After a Windows update, you might see a message that Windows Defender (Microsoft Defender Antivir...

You open Windows Security and see the message 'Windows Defender service unavailable' or 'Windows ...

If you see 'Windows Search token expired' in Outlook 2016, it usually means the search index is c...

If the Windows Security app is crashing, not opening, or showing errors, resetting it can often f...

If you see a '404 Not Found' error when opening Outlook or clicking a link in an email, it usuall...

After a Windows update, you might see a “permission denied” error when trying to activate Windows...