Originally Posted by kevindd992002;15140531
But if I do a UEFI boot won't Win7 x64 format any (no matter what size) drive to be GPT? Or will it only do this to HDDs that are more than or equal to 2.2GB capacity?
Yes, UEFI must use GPT rather than MBR, so the partition type will always be GPT. The UEFI install will create 3 partitions on your SSD (The SSD has to be completly blank before install).
Partition 1 - ESP (100MB)
-The ESP contains the NTLDR, HAL, Boot.txt, and other files that are needed to boot the system. The UEFI drivers, as well as others needed to boot are located here.
Partition 2 - MSR (128MB)
-Microsoft Reserved Partition. This is space allocated on each disk drive for use by Windows.
Partition 3 - Operating System (The remainder of your SSD)
-Your data and everything else
Partition #2 will be hidden from the OS (you will not be able to see it in disk management under the windows environment). You can see this partition if you run the Diskpart utility after install.
These three partitions are necessary for an UEFI boot.
Originally Posted by kevindd992002;15143540
Also, I'm reading that UEFI makes booting faster by a couple of seconds.
This is true
There currently is a potential problem (in some instances) with UEFI GPT partitions that are used to boot the OS. The problem you potentially have with a GPT partition is the inability to make a sector by sector image of the partition, for later resoration in the event of corruption to the OS. This problem is being worked on, and a solution sould be available down the road.
Copying the GPT partition means the GUIDs (Globally Unique Identifyers) for both the partitions and disk are no longer unique. Losing their unique attributes in the imaging process can, and does, potentially cause restoration issues. It is important that all three partitions involved in the UEFI boot be imaged at the same time for a restoration to be successful, and this does not necessarily guaranty a sucessful restoration. Snapping a good, usable image of the MSR (since it is hidden in the OS) makes this very difficult.Edited by xandypx - 10/2/11 at 8:24am