Enabling Bitlocker makes BIOS POST very slow (Windows 7)
With BitLocker enabled using the TPM of my Thinkpad X61T the BIOS POST time increases for 1 to 17 Sec.After the BIOS Windows 7 Betatakes a 15 Sec to start. So enabling BitLocker doubles my boot time. I am using the latest BIOS 1.2.2 released Jan 8, 2009.Windows disk accessitself does not feel slower with BitLocker encryption. HDTUNE does not measure a slowdown.Only the BIOS POST is very slow.X61T, Win 7 x64,1400x1050 LCD, 4GB RAM, 1GB Turbo Memory, Intel X25-M SSD
February 10th, 2009 11:49pm

Hi pmeinl, thank you for your feedback regarding the issue. We will fully test it and meanwhile, send this thread to our product group for further investigation. Again, thank you for the valuable information. Sean Zhu - MSFT
Free Windows Admin Tool Kit Click here and download it now
February 12th, 2009 10:55am

In addition I do not understand how to enable Bitlocker with TPM and PIN.For background Information about the risks of different approaches see:Data Encryption Toolkit for Mobile PCshttp://www.microsoft.com/downloads/details.aspx?FamilyID=1A99576A-FE67-418F-88B1-81E2055FE977&displaylang=en
February 28th, 2009 11:49am

This problem still exists in Win7 RTM.
Free Windows Admin Tool Kit Click here and download it now
August 8th, 2009 2:35pm

This topic is archived. No further replies will be accepted.

Other recent topics Other recent topics