can't open windows security app

If you're unable to open the Windows Security app, you can try exporting and sharing diagnostic logs to help troubleshoot the issue. Here’s how you can do that:

1. Open the Settings app on your device.
2. Go to Accounts > Access work or school.
3. Select Export your management log files.
4. Email the logs to your support person. The logs are saved in C:\Users\Public\Public Documents\MDMDiagnostics. You will find two files for each log: one is the log itself, and the other is a document that allows your admin to review the logs in different programs, such as Microsoft Excel. Include both files in your email to your support person.

If you still need help, consider contacting your IT support for further assistance.

Hi,

If the Windows Security app won’t open even after resets it’s almost always due to broken app registration or corrupted system files, not your antivirus being disabled.

Fastest fix:

Open PowerShell as Administrator and run:

Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage

(This re-registers the app.)

Then run:

sfc /scannow

(Repairs system files.)

Check Windows Update for pending patches.

If that doesn’t work, next step is DISM repair or exporting logs for deeper troubleshooting. I hope this helps!

Hi,

Unfortunately, there’s no single “uploadable” log for automatic fixes, but these logs can help if you escalate to Microsoft Support via Contact Us and choose Chat with an agent.

Since you already tried possible solutions, and nothing worked, I recommend to perform repair upgrade once:

https://v4.hkg1.meaqua.org/en-us/answers/questions/2287898/how-to-perform-repair-upgrade-in-windows-11-articl