Enable Windows Defender via Group Policy - "This App Is Turned Off By Group Policy'

Windows Defender This Program Is Blocked By Group Policy or  This App Is Turned Off By Group Policy in Microsoft Windows 10 / Microsoft Windows 8 / Microsoft Windows 7 .

Enable Microsoft Windows Defender via Group Policy  -

Step 1. Open Run Command  or press Windows key + R and type  regedit  click OK . As Shown fig.

Step 2. After click on OK button Registry Editor will be open .
Click On HKEY_LOCAL_MACHINE   As Shown in Fig.

Step 3. Click On Software As Shown in Fig..

Step 4. Click on Policies  ,Select Microsoft, Select Windows Defender  As Shown in Fig..

Step 5. After delete As Shown in Fig.

 Step 6 . Open Microsoft Windows Defender As Shown in Fig..

and now click on Start Button.