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Fix Windows Security Issues in Windows 11 with a Reset

Richard
Written by
Richard
Jul 19, 2021 Updated Apr 14, 2026 1 min read
Fix Windows Security Issues in Windows 11 with a Reset
Fix Windows Security Issues in Windows 11 with a Reset

You can fix Windows Security issues in Windows 11 by resetting the app.

Windows Security is the built-in tool that monitors your PC’s security and health. When it acts up, like closing unexpectedly or refusing to open, a reset often solves the problem.

Resetting this app clears out any corrupted temporary files or data, bringing it back to its original settings. This won’t touch your personal files or any antivirus programs you’ve installed.

This troubleshooting step is particularly useful if you’re seeing errors after a recent Windows 11 update, such as one for build 22621.

⚡ Quick Answer

Reset the Windows Security app by going to Settings > Apps > Apps & features, finding Windows Security, clicking the three dots, selecting Advanced options, and then clicking Reset. This clears app data and fixes issues without affecting your personal files.

How to reset the app through Settings

  1. Click the Start button on your taskbar.
  2. Type Windows Security into the search box.
  3. Right-click the app in the results and choose App settings.
Accessing App settings for Windows Security in Windows 11
reset windows security apps windows 11

  1. Scroll down until you see the Reset section.
  2. Click the Reset button.
Locating the Reset button within Windows Security app settings
windows security apps reset from settings

  1. A warning will appear telling you that app data will be deleted. Click Reset again to confirm.
Confirmation prompt for resetting Windows Security app data
windows security apps reset confirm

What if the app is missing?

If you cannot find the app at all, you can use a command to reinstall it. This requires admin privileges.

  1. Click the Start menu and search for PowerShell.
  2. Right-click PowerShell and select Run as administrator. %📂%LNK0%%
Running PowerShell as administrator to fix Windows Security issues
windows 11 powershell run as administrator

  1. Type the following command and press Enter:
⬛PowerShell
Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage

The app should now be repaired and ready to use.

Windows Security dashboard interface on a Windows 11 computer
windows security apps dashboard

Summary

  • Windows Security is your main hub for checking system health.
  • Resetting the app is a simple way to fix crashes or errors.
  • You can reset through the standard Settings menu or by using a command in PowerShell if the app is missing.
  • Performing a reset clears app data but keeps your computer safe.

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Tags: #Windows 11
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Richard

About the Author

Richard

Tech Writer, IT Professional

Richard, a writer for Geek Rewind, is a tech enthusiast who loves breaking down complex IT topics into simple, easy-to-understand ideas. With years of hands-on experience in system administration and enterprise IT operations, he’s developed a knack for offering practical tips and solutions. Richard aims to make technology more accessible and actionable. He's deeply committed to the Geek Rewind community, always ready to answer questions and engage in discussions.

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