Take it easy and you’re able to easily fix this issue.
Read this post andMiniTool Softwarewill show you a simple solutions.
Windows Defender can provide real-time protection.

To turn on Windows Defender in Windows 10, go toSettings > Update & Security > Windows Defender.
Then, you could launch this security app from there.
This error can be found not only in Windows 10 but also in Windows 11.
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Recently, the error Youll need a new app to open this Windowsdefender link bothers many Windows 11 users.
Perhaps you are also a victim of this bug.
And you are asked to find an app in the Microsoft Store to open this windowsdefender link.
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Actually, there is no app in the Store to handle this app.
Here is what you gotta do.
Step 1: Typepowershellto the search box of Windows 10/11, right-clickWindows PowerShell,and chooseRun as administrator.
After finishing the process, you’re able to open Windows Defender like before.
Other Known Windows 11 Issues
Windows 11 update issues always frustrate you.
What if Windows Defender keeps turning on in Windows 11/10?
Take it easy and you might find multiple ways from this post to fix this issue.
Final Words
Youll need a new app to open this windowsdefender link in Windows 11 or 10?
Just try the above method and you might easily fix it.