
Windows Security Troubleshooting Guide
Windows Security (formerly Windows Defender) usually runs quietly in the background, but sometime...

Windows Security (formerly Windows Defender) usually runs quietly in the background, but sometime...

You see a message that your Windows activation is invalid due to a configuration problem. This us...

When Windows Search indexing pauses and shows error 0x80004005, search results become incomplete ...

You try to install an app from the Microsoft Store, but get a 'permission denied' error and you d...

You change a Windows Search setting—like indexing options or excluded folders—but it reverts afte...

You open the Microsoft Store and see a blank white screen, or an error code 0x80073cf0 appears. T...