Stop PowerShell.exe from Starting!


Have you gone mad?“, I hear you cry!

Last month (and year), I posted about limiting the functionality of PowerShell – Security Focus: Set ConstrainedLanguage Mode on My Machine.

This month (and this year), I’ve found an oddity with this particular technique…


Warning: Don’t Try This At Home!

Whilst playing around with the __PSLockdownPolicy setting, I discovered that using a negative value causes the default PowerShell hosts to crash.

[Environment]::SetEnvironmentVariable('__PSLockdownPolicy', '-1', 'Machine')


Let’s try and start PS…




Duly reported to the PowerShell powers that be.


Comments (0)

Skip to main content