How to Allow or Block Non-Store Apps to Install on WINS 10 ?

1. Run dialog : ms-settings:appsfeatures.
2. You may change the settings at Installing apps only from Windows Store helps protect your device.

Please proceed to the steps below if you cannot change the setting.

1. Run dialog : gpedit.msc.
2. Go to Computer Configuration > Administrative Templates > Windows Components > Windows Defender SmartScreen > Explorer.
3. Double-click Configure App Install Control.
4. Set it to Not Configured.
5. Click Apply then OK.
6. Double-click Configure Windows Defender SmartScreen.
7. Set it to Not Configured.
8. Click Apply then OK.