4

I am using the Windows sandbox feature, that comes with Windows Pro and Enterprise systems (Using Hyper-V). It worked for months, but now I always get the same error when I try to run an .exe file. The executable is compiled with the Go compiler and does not need any external dependencies (no .net whatsoever). I tried several different exe files from the internet, and all have the same error pop up.

error screenshot

I cannot click on yes, as there is no Windows Store in the Sandbox.

Does anyone know, how I could fix this? Thanks in advance!

Sandbox system info:

sandbox system info

EDIT:

After further investigation, I found that this is happening with unsigned apps. I think it wants to install Windows Smart Screen. I could disable that in the Windows Security panel, but I cannot open it (it closes immediately when I open it, just a quick flash in the taskbar).

MarvinJWendt
  • 221

1 Answers1

8

This happens with unsigned executables. It wants to install Windows Smartscreen. You can disable Windows Smartscreen with this powershell script:

Set-ItemProperty -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows\System" -Name "EnableSmartScreen" -Type DWord -Value 0
If (!(Test-Path "HKLM:\SOFTWARE\Policies\Microsoft\MicrosoftEdge\PhishingFilter")) {
    New-Item -Path "HKLM:\SOFTWARE\Policies\Microsoft\MicrosoftEdge\PhishingFilter" -Force | Out-Null
}
Set-ItemProperty -Path "HKLM:\SOFTWARE\Policies\Microsoft\MicrosoftEdge\PhishingFilter" -Name "EnabledV9" -Type DWord -Value 0

This script could also be added to the LogonCommand of the Sandbox configuration.

MarvinJWendt
  • 221