I had a similar problem when I had a USB stick attached and it wanted to boot/read from there first.
Well and running a Microsoft Preview is always very likely to be unstable ;) I found some other hints on a German forum entry which may help you, too even though it is only when the bootup freezes at the DMI pool verifying: DMI stands for Desktop Management Interface.
The above information only applies to Microsoft Windows users.
If you have Linux, OS/2, or other operating system make sure the operating system has been properly installed and your boot manager is not corrupt.
Verify no floppy diskette, CD, or USB drive is connected to the computer.
In some cases, the computer may be trying to boot from either of these drives causing issues with the boot sequence.
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Please see our Contact page if you have any comments or corrections that would make this article better. It is a brand new Gigabyte motherboard with AMD 790X chipset and an AMD Phenom II processor. " a comment about what it just did, or something I should do? For example read something about that the battery was dead or something, but then it wouldn't remember the CMOS settings, would it? I have tried to look around and figure out what this is but can't figure it out.
If a CD or diskette is in the computer remove this first to determine if it was attempting to boot from it.