Windows 10: Windows Defender blocking apps like Firefox or Steam

Bascially, I updated to windows 11 a few days ago and basically today I couldn't enter Firefox. After a research i found out that the app was being blocked by the windows defender, and, after changing Firefox's executable name, I was able to open it. The same happened with Steam. How do I get rid of this problem? Already disabled all windows defender options but still having the same issue.

:)

 

Windows Defender is blocking too much saying it viruses

Hi Sam,

Based on the screenshot that you've provided, Controlled Folder Access is turned on, blocking most apps that you're using. We suggest that you turn it off to allow blocked apps in Windows Defender. Follow the steps below:

• Select Start > Settings.
• Choose Update & security > Windows Defender.
• Select Open Windows Defender Security Center.
• Select Virus & threat protection, and then choose Virus & threat protection settings.
• Under Controlled folder access, turn it on or off.
• Once done, try accessing the apps and see if you can now access them.

Should you need further assistance, feel free to post back.

 

Block ALL Programs Except Allowed Ones

You can block programs using Windows Defender, for example (ignore the strange title): Please Wait... | Cloudflare E.g.

 

Windows Defender Blocking Installations of Downloaded Apps

Hi Craig,

There's a possibility that the SmartScreen option is on that's why you're unable to install downloaded apps. Let's try to turn it off and see if it helps. See the steps below:

• Open Windows Defender Security Center from your Start menu, desktop, or taskbar.
• Click on the App and browser control button on the left side of the window.
• Click on Off in the Check apps and files section.

Let us know if the suggestion helps you out.