How can you create an efi system partition on an existng C: Drive?
Just curious if this can be done or do I need to reformat and start over?
Mobo: ASrock Z77 Exteme4
CPU: i5-3570K 4.2G
CPU Heatsink : Hyper 212 EVO
RAM: Ripjaw F3-12800CL9-4GBRL 2x4GB
GFX: MSI GTX650
PSU: Lepa 500W
SSD: PNY XLR8 240GB (C:)
SSD: OCZ Agiliity 3 240GB (refurb)
Storage: Seagate 7200.12 1TB
Storage: Seagate 7200.12 500GB
Well, the OP was done in May, and had no answer.
At least a partial answer can be found here:
HOW TO: Use the Diskpart.efi Utility to Create a GUID Partition Table Partition on a Raw Disk in Windows
To make the EFI system partition useful, the disk would need to be converted to GPT format if it is currently MBR format. If that resulting disk could be booted correctly is unknown to me, I doubt it is that simple.
An EFI system partition is just one part of a Windows OS drive that is configured for EFI booting, which is something not easily explained in a few sentences.
The ironic part of this is that MS article refers to Windows XP, and is from 2006. EFI partitions existed back with Windows XP, but it is only recently with Windows 7 and 8 that true EFI booting of the UEFI firmware on motherboards can be done. That is, now that more mother board manufactures use UEFI firmware that has the options to enable EFI booting.
Thanks for your reply. Now I understand that the EFI partition the original poster was referring to is when Windows 7 gives you the option to format as GPT rather than MBR. The only time I use this option is so that hard drives larger than 2.2 Tetrabytes will be fully recognized by Windows, which I think you have to have a UEFI (rather than BIOS) motherboard to utilize. Now they make special utilities so you don't need an UEFI motherboard. I'm not totally clear on all this, but it seems to me you would have to format the whole hard drive this way if you wanted it all to be recognized by Windows. I'm not sure what the other advantages to formatting as GPT are, or why you would want to format only part of a hard drive this way.
"don't let what you can't do stop you from doing what you can"
There are currently 1 users browsing this thread. (0 members and 1 guests)