Accidentally deleted 16mb MI reserved partition

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I accidentally deleted 16 MB Microsoft reserved partition. PC didn't Boot after then. It was stuck without booting saying "unable to mount boot volume". I somehow managed to fix it by rebuildbcd. And now, it's booting fine. Now that 16mb partition is "unallocated". Do I need to do Anything? What was that 16mb partition? It wasn't the EFI partition. My efi partition is 256mb.
Thanks!
5 Replies
Hello,

it's Microsoft reserved partition (MSR)
Beginning in Windows 10, the size of the MSR is 16 MB.
The default partition layout for UEFI-based PCs is: a system partition, an MSR, a Windows partition, and a recovery tools partition.

source: https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/configure-uefigpt-based-hard-d...
So, should I worry that I don't have it now? It's showing unallocated!
If it's working then don't bother but next time make make sure you clean install Windows fomr a USB and on the installation screen delete all the partitions belonging to Windows and let them be created again.
I've a backup of my gpt partition table. Will it help to recover that deleted partition? If not, why?
I'm not sure.