
Where Windows Defender Stores Its Cache Files
If Windows Defender (now Microsoft Defender Antivirus) won't update definitions, hangs during sca...
Software troubleshooting desk

If Windows Defender (now Microsoft Defender Antivirus) won't update definitions, hangs during sca...

If you installed Windows on a machine that never went online, or used an offline installer (like ...

You downloaded the Microsoft Store offline installer (an .appxbundle or .msixbundle file) to inst...

If you're having trouble with the Microsoft Store—apps won't download, updates fail, or the store...

If your computer is running slowly or you're running low on disk space, temporary files and cache...

If you've disabled or uninstalled a third-party antivirus and now find Windows Defender is not au...