Computer Shuts Down At BitLocker Boot Password Prompt

Hi All,

I have been using this computer for almost 6 months now with absolutely no problems until I encrypted my system drive with BitLocker. I am not using a TPM. Now, almost every time I get to the password prompt for BitLocker at boot, my computer turns completely off. I am using an ASUS Z97-E. ASUS tech support was completely useless and wanted to pass the blame instead of help, so I guess I'm on my own as far as their support.

I have read previously that this may be related to ASUS products. I cannot seem to get it to boot reliably. If I completely remove power from the machine by unplugging it, sometimes that will give me enough time to enter my password. If I don't, often, it will only give me a couple seconds (and my password is pretty long) before shutting down.

I have tried disabling Secure Boot and that seemed to help at first but then the problem came right back.

There is a BIOS update available but I'm not confident it will fix the problem.

Are there any specific BIOS settings I can change to make BitLocker stop making my computer shut down? Any Windows settings I can change that might help? 

I'd really like to keep my data encrypted but I'm not sure if this hassle is worth it.


  • Edited by SeanN26 17 hours 24 minutes ago
April 22nd, 2015 9:59am

Hi,

Based on my research, this is a firmware problem. It does not matter what authentication method (TPM/without TPM/PIN+TPM/Password only/...) is used, it leaves you only some seconds before it shuts down.

It's recommend you contact ASUS tell them to try and reproduce it. They would need to fix their BIOS.

In addition, we could try to disable "fast startup" as below steps to see if it could be as a workaround:

1.In Control Panel, open the Power Options item.
2.Click the Choose what the power buttons do link.
3.Clear the Turn on fast startup (recommended) check box.
4.Click Save Settings.

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April 22nd, 2015 10:51pm

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