If you are using bitlocker and get an upgrade failure, it seems it’s not sufficient enough to suspend it as the documentation may lead you to believe. You must disable and decrypt the drive first.
I was getting an error about not finding source file about 1/2 way through the upgrade (after first reboot) that doesn’t indicate anything about bitlocker. After verifying my media and install sources were good I took a guess and decrypted the system drive.
Also I think IE 8 beta and RC1 have an issue with Google Toolbar 5 on both of these Windows 7 builds. I get a lot of tab crashes while it’s installed.
