
Windows Defender Not Opening? Here's How to Fix It
You click the Windows Defender icon, but nothing happens—or you get an error saying the app didn'...

You click the Windows Defender icon, but nothing happens—or you get an error saying the app didn'...

If you see error 0x80070643 when updating Windows Defender, it usually means the update failed du...

If you see error code 0x80073b01 when opening Windows Defender or trying to run a scan, it usuall...

You click 'Install now' on a Windows update, wait through the progress bar, and then see 'Update ...

You open Windows Defender and see error code 0x800704cf. This usually means Windows Defender can’...

When you see 'Windows Search log file not found' in Event Viewer or during indexing, the search i...