Windows Security won't open

[Selestial]

I have a Dell laptop that had Windows 10 on it. I added 2 users to the laptop, me being the administrator and them being just added users to play games and such. I then upgraded to Windows 11. Nothing wrong so far. Up until now with my account, there have been no issues at all. this has not changed. So, I noticed on both the users accounts, Windows Security can't be opened. I'm asked to download an app from the store, which when I click on that, it tells me nothing was found. Fair enough. W Security isn't there. Cool. I looked around google and found several commands for CMD and Powershell. I ran those several ways on elevated CMD, Powershell, and terminal. The codes didn't work. When I look for W Security/ W Defender in apps, it's nowhere to be found. In control panel, I can clearly see it in Firewall and all that, but I can't get it to do anything at all. I ran Dism, sfc, Get apppackage, and an extended version of that last one. Nothing works. Where do I go from here?

 

Edit: I think I know what the issue is, thought I haven't yet fixed it because I will ask permission of the users. Just now, I created a new profile, non admin. Everything works fine. I think I need to remove and recreate the user profiles. This might fix it entirely. I think the admin profile upgrading W10 to W11 didn't install properly on non admin accounts. Therefore, the security app broke and there's no proper fix for it except for reinserting users fresh. No amount of Powershelling or gpeditor is going to help this particular issue.

Edited May 8, 2022 by Selestialnorre

[C2dan88]

Got same problem too. Only upgraded yesterday.

 

Edit

Weird  just tried these two commands again in elevated powershell

Set-ExecutionPolicy Unrestricted 
Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}

And that fixed my issue. (tried  this yesterday and did not fix. This time I disabled Malwarebytes) 

[Selestial]

3 hours ago, C2dan88 said:

Got same problem too. Only upgraded yesterday.

 

Edit

Weird  just tried these two commands again in elevated powershell

Set-ExecutionPolicy Unrestricted 
Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}

And that fixed my issue. (tried  this yesterday and did not fix. This time I disabled Malwarebytes) 

I don't use 3rd party activities and things like that. There's nothing for me to disable. Plus, the app is just straight up missing altogether asking with several windows programs. I had to download terminal to try a few fixes and went down another rabbit hole. I tried the codes a few times in several orgasms and none of them worked. Kept getting error messages that said can't install because user is logged off, or previous version is already newer.. yada. My fix is to readd the profiles as new.