
Fix Windows Defender Service Not Starting After Update
After a Windows update, you might find that Windows Defender won't start, leaving your system wit...
Software troubleshooting desk

After a Windows update, you might find that Windows Defender won't start, leaving your system wit...

You're running a command in Windows Terminal—maybe a git clone, curl request, or npm install—and ...

You open Microsoft Store and see error 0x80070005, often accompanied by “Access denied” or “Somet...

You try to start Windows Defender, but it fails immediately with error 577, often accompanied by ...

After a Windows update, you might see errors like "The configuration is invalid" or "Invalid comm...

If Windows Defender is causing high CPU usage, it can slow down your computer. The most direct fi...