5 Fixes for Windows Security App Showing White Screen on Windows 11

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Common Fixes

Fix 1: Manually Restart the Windows Security Center

The Windows Security Center service controls the functioning of theWindows Securityapp. Restarting the service manually should resolve the latter’s white screen error.

Step 1:Press theWindows + R shortcutto open the Run dialog, typeservices.msc, and pressEnter.

Step 2:Locate theSecurity Centerservice in the list and right-click toRestartit. Reopen the Windows Security app.

Fix 2: Repair and Reset the Windows Security App

Incorrect configurations and corrupt app files are common reasons for the Windows Security app showing a white screen error. Repair or reset the app to fix it.

Note:Resetting the Windows Security app deletes all its app data.

Step 1:OpenWindows Settings(press the Windows + I shortcut) > selectAppsfrom the left sidebar > clickInstalled apps.

Step 2:LocateWindows Security> click itsthree-dotmenu > selectAdvanced options.

Step 3:Scroll down and clickRepair. If it doesn’t solve the problem, selectResetto restore the app to its default configuration.

Fix 3: Edit the Windows Registry

If the Windows Security app is disabled under system settings, it’ll fail to launch on Windows 11, showing the white screen error. Tweak its settings using theRegistry Editor appto restore normalcy.

Step 1:Open theRun dialog(press the Windows + R shortcut) > typeregedit> press Enter.

Step 2:Copy-paste the below path into the address bar and double-click theStartkey.

Step 3:Set its Value data to1and clickOKto save changes.

Fix 4: Repair Corrupt System Files With SFC and DISM Scans

If certain system files or Windows components linked to Windows Security are missing orcorrupt, the app may show a white screen upon launch. Run the SFC and DISM scans to repair the system image.

Step 1:Press theWindows key> searchCommand Prompt> clickRun as administrator.

Step 2:Copy-paste the following command and pressEnter.

Step 3:Next, execute the below DISM commands sequentially and restart your Windows 11 PC.

Fix 5: Reinstall the Windows Security App

If nothing works, reinstall the Windows Security app using Terminal on Windows 11.

Step 1:Press theWindows key> searchWindows PowerShell> clickRun as Administrator.

Step 2:Copy-paste the following command, pressEnter, andrebootyour PC.

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Last updated on 22 May, 2024

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