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It safeguards Windows, Mac and Android gadgets while keeping your iPhone and iPad running at peak performance.

We recommend our sponsor, TotalAV. This award-winning antivirus security suite offers built-in adware, ransomware and malware protection. Once you’re done with that, you may want to try installing a different antivirus program to replace Windows Defender. One of the three fixes we outlined here should fix your Windows Security issues. Copy and paste this script at the command prompt: Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage.Click Yes on the User Account Control (UAC prompt).Right-click Windows PowerShell and select Run as administrator.Press the Win key + S and type PowerShell in the search box.You’ll need to run PowerShell as an administrator before you can try the fix.

You can use the terminal to run commands to troubleshoot or repair issues with your PC. Windows PowerShell replaces the Command Prompt you may have used in older versions of Windows. If Windows Security still gives you a problem, there’s one more fix to try. If that doesn’t fix the problem, try Reset.Select the Advanced options link, then hit Repair if it’s available.Select the three dots icon next to Windows Security.Go to Start > Settings > Apps > Apps & features.You can repair some apps and programs if they’re not running correctly. If it still doesn’t work, move on to the next step. Restart your PC and try opening the Security app. If an update is available, select Download and install now.

Go to Start > Settings > Windows Update > Check for updates.

In this case, it can also fix any problems you’re having. Keeping Windows up to date is critical to protect against security threats. RELATED: Windows security: A new way to see what’s accessing your PC’s mic and camera No, you don’t need a new app from the Microsoft Store. You may be getting the following error: You’ll need a new app to open this windows defender link. Guess what? You won’t be able to disable it if you can’t open the Security app, to begin with. If you want to use a third-party antivirus program (more on that below), you should disable Windows Defender, the antivirus program built into the Security app.