If WIndows 7 supports GPT, why can't I install the OS on GPT?

Since this thread is a couple of years old, some things have changed since the OP asked the question.

But to use a GPT drive to boot into Windows 7, you must use Windows 7 x64 and have a UEFI enabled bios and install as UEFI. This only refers to the boot drive and not another drive installed in the system.

Originally Posted by Marcus S

Formating the primary drive GPT from the get go or starting with a blank partition leaving Windows 7 Pro & Ultimate to do it via diskpart, setup will not proceed until you change the partition scheme to NTFS or MBR. Continue installation / setup remains greyed out even though you can clearly see the partition formated GPT and you receive the following message...

Windows cannot be installed to Disk 0 Partition 1
Click on "show details"
"Windows cannot be installed to this disk. The selected disk is of the GPT partition style."

Thank you very much. This has sovled my problem!!!!

Originally Posted by zachWD

To install Windows 7 on GPT is simple; whiloe installing from windows 7 DVD, and you get to the segment that you can create or delete partitions press "shift+F10" this will open a command prompt and you can use diskpart to convert to GPT

hi when do disk part option after select disk 1 with 698 gb GPT and i wnat to convert to mbr i get error :

Virtual disk service error : the specified disk is not convertible......

any help