When I upgraded from Windows 7 pro to Windows 10 Pro my partition layout is 100MB EFI Primary (where Windows 10 is installed) 450MB Recovery How do I edit my partition layout so that it matches what would be installed on a clean UEFI install? (As below) Paritition 1 - Recovery Partition 2 - System - The EFI System partition that contains the NTLDR, HAL, Boot.txt, and other files that are needed to boot the system, such as drivers. Partition 3 - MSR - The Microsoft Reserved (MSR) partition that reserves space on each disk drive for subsequent use by operating system software. Partition 4 - Primary - Where Windows is to be installed to.