I have Windows 7 64-bit Professional running on a Thinkpad w520.
For the last few months, whenever I reboot, sometimes the OS will come right back, but sometimes it will not. I get the PGP WDE login prompt and successfully enter my password and then the system waits at the Starting Windows . . . splash screen. I have let it sit there for nearly 45 minutes. The disk activity light is flashing and the disk is moving, but there doesn't appear to be any progress.
I have tried to cold boot from this state. Again, I get by the PGP WDE login successfully and then the Windows startup recovery comes up. I have tried using those tools, but in all cases it can't find the MBR. I did once try to repair the MBR, but realized that was a bad idea. I was able to decrypt my disk and then repair then re-encyrpt. The reboot problem went away for a time, but now has come back.
When this happens I usually have to cold boot (use power button) 2-3 times, then the OS will "kick in" and boot fine.
I am sure there is a fairly easy fix for this IF my disk wasn't encrypted, but with PGP turned on, standard disk tools don't appear to work.
Any suggestions to diagnose and repair? I would like to avoid decrypting again - it took 12 hours to decrypt and 15 to re-encrypt. ANd once decrypted, the problem couldn't be reproduced.