Uninstall third party antivirus software.
Restart the Security Center service.
Run another good SFC scan.
Install the latest update.
Change your own group policy.
Edit the Windows registry.
Click on the three facts in the top right corner.
Click “Advanced” in the lower left corner of the window.
Click Reset and Unlock.
Select “Settings” “Restore their breakout defaults”.
Click “Reset Settings”
Just follow the instructions below: 1 Go to the Microsoft website and search for the latest update. 2 Install extensions, then restart your computer. 3 Open Windows Defender and check if the specific error has been fixed. After
Open one of our start menus. Click Settings. Click Update & Security. In the left pane, click Windows Defender. In the right pane, scroll down to the Version Information section, then click Open in Windows Defender to easily launch the Windows Defender desktop. In the Windows Defender software, go to the Update section.
Error Code: 2147416390 – Microsoft Windows Community Defender won’t activate. Error code 2147416390: Has anyone resolved the cause of error code 2147416390: Windows Defender won’t activate? *** Topic edited by moderator for clarification. *** *** The message has been moved and also to the moderator in the appropriate online section. *** This topic is indeed locked.
Windows Defender is a great airport security service provided by Microsoft for Windows. In Windows 8 and Windows 10, Defender has been significantly improved and can now be used as a standalone antivirus.
I’m Ahmir, a freelance writer and editor who specializes in technology and business. My work has been featured on many of the most popular tech blogs and websites for more than 10 years. Efficient-soft.com is where I regularly contribute to my writings about the latest tech trends. Apart from my writing, I am also a certified project manager professional (PMP).