> after the screen comes up with options, select to Create USB Media > right click the MediaCreationTool > click Run As Admin > insert USB Flash Drive (8GB minimum) ready to be wiped clean > click where it says 'Download Tool Now' (this is the MCT) and download this to C Drive If you want Win10 on the PC, then do the following. The best I can suggest if windows update doesn't solve anything, doing Windows repair doesn't work, then best option is to reinstall Windows 11, or can always go to W10 like you said. Since you're on that cpu then you're pretty much ok. If this problem will remain, I will go back to win 10.

I don´t have permission to restart Security Center, and /sfcscannow shows that´s everything is okay. I have Ryzen 5 5600X and that´s maybe true what you´ve said. Or most worse case needing to do fresh install of W11. Worse case is doing Windows repair, you need to make a media ISO of W11, either burning to disk, or getting it on USB thumb drive. What can do is check group policy, or force restart Security Center Service, or run CMD as admin, and type sfc /scannow see if anything happens. What system specs? If by chance the pre built PC you got that came pre installed W11, and CPU it using isn't supported, may mean alter OS installed so they basically gave you a customize OS that not working as it should, but that only a guess. Originally posted by Dr.Shadowds 🐉:Did you install 3rd party anti virus?ĭid you use any app to affect Windows itself such as Shutup10, or etc that alter your OS, to removing something, or trying to disable something?

Windows 11 windows defender not working