Unable to open programs without admin access after Smart Scan turned Data Execution Prevention on

The other day Smart Scan suggested enabling “Data Execution Prevention” and since then my computer is unable to open certain programs unless I run them as administrator.

I’ve already tried running the following command to set my nx setting back to default, but I’m still running into issues:

“bcdedit.exe /set {current} nx OptIn”.

Does anyone know exactly what Avast changed, and how can I revert it?

You can set DEP back to protect essential programs only.

  • First, press the Win+R hotkey to open the Run dialog box and enter sysdm.cpl in it to launch System Properties.
  • Now, move to the Advanced tab inside the System Properties window and tap on Settings under Performance.
  • After that, navigate to the Data Execution Prevention tab and select the Turn on DEP option that suits your requirement.
  • Next, press the Apply > OK button to save changes.