I accidentally managed to delete MSR partition on one of my (3TB - GPT) data storage drives during Windows installation. Windows still sees the drive and all files inside. I backed up everything just in case, but now I am wondering whether I should try to restore this partition or not.
According some MS help articles MSR is required even on secondary drives - but is it? By the looks of it drive is performing very well and no data has been lost (yet). From gronostajs answer deleting this partition shouldn't cause any issues now, but some may arise in future (but what kind of issues)?
It's a placeholder invented by Microsoft. It doesn't contain any meaningful data and it's there just in case you'd ever need to create some additional partition for special uses. In that case, Windows will shrink the Reserved partition and create a new one in the recovered place. Deleting it shouldn't do any harm now, but you may face some problems in the future.
From what I understand, MSR is used for things like Bitlocker, but I don't really use this feature.
Thanks for answers
EDIT: I just ran
cre par msr in diskpart. It created new MSR partition, I don't know if it's all that's needed to restore it to state before I accidentally removed this partition. Guess I'll hope for the best something won't mess up :)