Threat Service Has Stopped Error | Windows Defender Antivirus |100% Fixed| 2021

Threat Service Has Stopped Error | Windows Defender Antivirus |100% Fixed| 2021.

Registry Path:
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender

It looks like Microsoft broke Windows Defender on Windows 10 for the second time in this year. Windows Defender update, which was shipped earlier today, is causing ‘Threat service has stopped. Restart now’ error and ‘Unexpected error. Sorry, we ran into a problem. Please try again.’

Typical for Microsoft, it won’t even tell you what’s wrong. It just says “Threat service has stopped”.

Above is a screen you see when you click Windows-X, “Settings”, “Home”, “Update & Security”, “Windows Defender”—and clicking “Restart now” doesn’t do anything.

Issues addressed in this tutorial:
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Sometimes, when trying to run Windows Defender, you may see this message The Threat Service has stopped, Restart it now. If you click on the Restart now button, and the Service starts, and the message disappears, well and good! But if it does not and you instead see a message Unexpected error, Sorry, we ran into a problem displayed, then here’s what you can try to fix the issue on your Windows 10.

This tutorial will apply for computers, laptops, desktops, and tablets running the Windows 10 operating system (Home, Professional, Enterprise, Education) from all supported hardware manufactures, like Dell, HP, Acer, Asus, Toshiba, Lenovo, and Samsung).