uninstalling win 8 and reinstalling win7
There is No problem uninstalling win8d and reinstalling win8. The problem comes when you want to install any other operating system on that same system. The Secure Boot feature doesn't allow you to do it, as it freezes up.
You can verify that the BIOS has been changed by disconnecting the hard drive prior to beginning the win 7 install from CD. When you do this, the install freezes at the first screen.
All subsequent win 8 installs proceed normally.
As a side note: Windows Home Server 2011 Restore is also useless as it does not support UEFI SECURE BOOT. I was able to use Windows Home Server 2011 with Win8, as Backups seemed to perform normally. However, these backups are useless since RESTORE does not boot, and freezes up.
SHUTTLE 67h3 with I5-2500 and 12 gb