A Microsoft 365 subscription allows you to the Microsoft Defender app on Windows 11/10 PCs.

However, some users report that they are unable to sign into Microsoft Defender.

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What is Windows Defender app Guard?

How to Enable Windows Defender Application Guard? [5 Ways]

How to enable Windows Defender app Guard?

This post provides 5 ways for you.

In most cases, it’s possible for you to solve the problem by restarting it.

click End task

Here are the steps.

TypeTask Managerin theSearchbox to open it.

Under theProcesstab, findMicrosoft Defenderand right-click it to chooseEnd task.

reset Microsoft Defender

Restart Microsoft Defender and peek if the issue has been resolved.

it’s possible for you to go to Microsofts official website to register a new account.

Therefore, you’re free to take a stab at reset the app first.

find the Turn off Microsoft Defender antivirus setting

To repair the Microsoft Defender, adhere to these instructions:

1.

Go toApps > Installed apps.

Go to theResetsection and click theRepairbutton However, if it doesnt work, click theResetbutton and confirm it.

How to Enable/Disable Periodic Scanning on Microsoft Defender

Solution 4: Check Group Policy Setting

1.

Press theWindows+Rkeys together to open theRundialogue box.

Go to this path:

Computer Configuration > Administrative Templates > Windows Components > Microsoft Defender Antivirus

4.

Find theTurn off Microsoft Defender antivirussetting.

If enabled, double-click it to select theNot Configuredoption.

This post tells you how to enable/disable Periodic Scanning.

Final Words

When you are unable to sign into Microsoft Defender, do not panic.

you’re free to try the solutions that I mentioned in this post.

I hope your rig can be kept secure and safe.

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