diff --git a/build/win32/code.iss b/build/win32/code.iss
index a67faad1726..cc11cbe80c1 100644
--- a/build/win32/code.iss
+++ b/build/win32/code.iss
@@ -1357,7 +1357,7 @@ var
 	TaskKilled: Integer;
 begin
 	Log('Stopping all tunnel services (at ' + ExpandConstant('"{app}\bin\{#TunnelApplicationName}.exe"') + ')');
-	ShellExec('', 'powershell.exe', '-Command "Get-WmiObject Win32_Process | Where-Object { $_.ExecutablePath -eq ' + ExpandConstant('''{app}\bin\{#TunnelApplicationName}.exe''') + ' } | Select @{Name=''Id''; Expression={$_.ProcessId}} | Stop-Process -Force"', '', SW_HIDE, ewWaitUntilTerminated, TaskKilled)
+	ShellExec('', 'powershell.exe', '-NoLogo -NoProfile -NonInteractive -WindowStyle Hidden -ExecutionPolicy Bypass -Command "Get-WmiObject Win32_Process | Where-Object { $_.ExecutablePath -eq ' + ExpandConstant('''{app}\bin\{#TunnelApplicationName}.exe''') + ' } | Select @{Name=''Id''; Expression={$_.ProcessId}} | Stop-Process -Force"', '', SW_HIDE, ewWaitUntilTerminated, TaskKilled)
 
 	WaitCounter := 10;
 	while (WaitCounter > 0) and CheckForMutexes('{#TunnelMutex}') do