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How to Fix Windows Security Not Working in Windows 11

Summary by TechViral
Several users have recently reported that the Windows Defender application is not opening after upgrading to Windows 11. If you are using Windows 11 and the security app is not working, here’s what you should do. 1. Restart your Windows 11 If you are experiencing problems like Windows Security not opening or being unable to run a scan, the first step is to restart your computer. A system restart is often overlooked, but it can fix most problems.…
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TechViral broke the news in on Tuesday, March 10, 2026.
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