How to reinstall window defender?

VintagMusic

Now that you've got your answer why bother when you have freebies from Bit Defender, Avast, Avira and Kaspersky.

KY-Clay

- How did you uninstall Windows Defender? If you installed another anti-malware program it will disable Windows Defender. Please follow the below steps and check: Step 1: Enable Windows defender from control panel 1. Press Windows + X, Click on control panel. 2. On right top corner click on View and then choose large items. 3. Now from the list click on Windows Defender and try to enable it. If not try to enable it from services. Step 2: Enable Windows defender from services.msc. 1. Press Windows + R, to open run prompt. 2. Type services.msc and press enter to open services list. 3. Under services look from Windows defender service and start the service.