Blank screen on windows defender(windows 11)

Hi Harris,

My name is Estrella, and I'm a Microsoft user like you. I'm sorry to hear you're experiencing this issue. I'll be more than happy to help.

1. Is your computer connected to a work or school account? You can check this by going to Settings > Accounts > Access work or school. If there's any, try disconnecting it, then try again.
2. If you're using any third-party antivirus program, try temporarily uninstalling it to see if the problem resolves.

3. If the issue persists, please follow the tutorial in the link below to fix it. https://www.winhelponline.com/blog/windows-secu...

Download the SecurityHealthSetup.exe and run it as an administrator. After that, check the Windows Security page to see if it's working. If not, restart your computer and wait 5 minutes. Please refer to the steps in the link above.

Disclaimer: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.

●If you find the answer helpful, please mark it as an answer.
●If you need further assistance, please click the 'Reply' link below my response to let me know the outcome and provide more information by answering my question above. Thank you.

Hello,

See if this fix helps you:

https://www.kapilarya.com/fix-cant-access-virus-and-threat-protection-on-windows-security

Hope this helps!

Note: Included link in this reply refers to blog post by a trusted Microsoft MVP. 

Hi, just checking if you still need further assistance or if you found the above solution helpful. If so, please mark it as an answer to help other users with the same issue. Thank you!