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I'm trying to convert an SSD from MBR to GPT when installing Windows 7 so I can use UEFI rather than Legacy boot mode.
I realize there are a few related questions here but I didn't find them particularly helpful. One of the suggestions I've read is to enable UEFI in the BIOS settings but I don't see any option to do that.
Under boot order in the BIOS settings the following devices are listed under EFI boot sources:
- USB Floppy/CD
- USB Hard Drive
- ATAPI CD/DVD Drive
My SSD is listed under Legacy boot sources.
The SSD is in a HP Compaq 8200 Elite SFF PC (64 bit) and I'm installing Windows 7 Professional (64 bit).
I downloaded the Windows 7 ISO image file and created a bootable USB drive using the Windows USB/DVD download tool.
During the installation process where I'm asked to select the drive where Windows will be installed, I deleted all the drives so there was just one unallocated volume left.
I then opened the command line interface and first cleaned the disk and then converted it to GPT using the diskpart prompt. This was reported as successful. I continued the installation allowing a new volume to be created automatically.
After finishing the installation I opened the disk management tool, right clicked on the volume where I had just installed Windows, selected "properties", then the "volume" tab where I saw that the "partition style" was still listed as "MBR".
Also, when checking the boot order in BIOS, the drive is still listed under the Legacy boot mode devices.