dual boot – How do a resolve the error where Microsoft Reserved Partition isn’t detected?

I installed Ubuntu 20.10 a couple months ago, and I performed the setup that made Ubuntu as my native OS. However, Windows 10 was still accessible from GRUB and ran perfectly when I would boot into it. I decided that I wanted to partition some storage for Windows so that I could use this new tablet I was gifted for lessons and recordings. My issue is that when I open Gparted, there’s an exclamation point next to Microsoft Reserved Partition. The information in the partition file says:

Unable to detect file system! Possible reasons are:

– The file system is damaged

– The file system is unknown to GParted

– There is no file system available (unformatted)

– The device entry /dev/sda2 is missing

Furthermore, if I try to resize the partition in my hard disk I receive an error saying:

Error unmounting /dev/sdb2: target is busy (udisks-error-quark, 14)

I apologies if I seem naive, but I am somewhat of a novice when it comes to Linux distros. Any help resolving this issue is greatly appreciated.