Why does Win 10 Enterprise x64 21H2 insist on creating an extra EFI partition at end, even when there's already one ?
Posted: Fri Apr 28, 2023 12:21 pm
As per title...
I have used TBEXPLO to pre-partition my disk as follows:
260MiB EFI System partition
16MiB MSP/MSR partition
100 GiB C: Windows partition (NTFS)
1 GiB WinRE Windows Recovery partition
1 MiB Free Space (Needed after WinRE, otherwise Windows will shrink C: and create an extra WinRE after C:, with 1MiB Free Space after it, before the already existing 1 GiB WinRE partition)
1 TiB D: DATA partition (NTFS)
150MiB IFL Recovery partition (FAT-32)
186GiB Free Space to end for Over-provisioning
Why does Win 10 Enterprise x64 21H2 insist on creating another 100 MiB EFI partition at end, rather than using the existing one at the beginning of disk ?
On the partition selection window at beginning of Windows installer setup, after selecting C:, the installer complains that the partition layout is not correct for GPT, and to check microsoft.com. Any ideas why ?
I have used TBEXPLO to pre-partition my disk as follows:
260MiB EFI System partition
16MiB MSP/MSR partition
100 GiB C: Windows partition (NTFS)
1 GiB WinRE Windows Recovery partition
1 MiB Free Space (Needed after WinRE, otherwise Windows will shrink C: and create an extra WinRE after C:, with 1MiB Free Space after it, before the already existing 1 GiB WinRE partition)
1 TiB D: DATA partition (NTFS)
150MiB IFL Recovery partition (FAT-32)
186GiB Free Space to end for Over-provisioning
Why does Win 10 Enterprise x64 21H2 insist on creating another 100 MiB EFI partition at end, rather than using the existing one at the beginning of disk ?
On the partition selection window at beginning of Windows installer setup, after selecting C:, the installer complains that the partition layout is not correct for GPT, and to check microsoft.com. Any ideas why ?