Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I want to startup my Windows and then see a dialog box (or a commandline window) that prompts me for the drive password to decrypt it automatically after bootup.

I tried to make a .bat "script" (related question) but it just didn't work while I was able to decrypt the drive with the same commands I by hand in the commandline.

share|improve this question
Even though this questions overlaps with the related question; I think it's useful to have this one because a lot of people might search with this phrasing – klyonrad Jan 10 '13 at 16:09
"it just didn't work" - Why, any errors? – Karan Jan 11 '13 at 0:47
I'm stupid - I forget the pause at the end. But now I need to find a way to make it start as administrator from startup – klyonrad Jan 11 '13 at 1:12
Have you seen these questions already? – Karan Jan 11 '13 at 1:22

My current (unpolished barebone) solution:

.bat file with

@echo off
manage-bde G: -unlock -password

Put that in the task manager; trigger at logon. It has to run as administrator (highest voted answer works like a charm). Has one big flaw though at the moment: When I enter a wrong password I don't get another prompt but "press any key to continue..."

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.