Each partition type is strictly identified by a GUID number. For example, the data partitions (“Basic data partition”) are identified by the GUID ebd0a0a2-b9e5-4433-87c0-68b6b72699c7. The EFI partition has the GUID c12a7328-f81f-11d2-ba4b-00a0c93ec93b.
However, on some systems, the EFI partition may have an incorrect ID assigned for unknown reasons. As a result, the EFI partition may appear as a “basic data partition” when you open Disk Management.Read more
When you try to extend a volume in Disk Management, the Extend Volume option may be grayed out even though there is unallocated space on the disk.Read more
When you use the Disk Management console to shrink the volume in which the Operation System is installed, you’re unable to choose a value (to shrink) beyond a limit. In the shrink volume dialog, the following message is displayed: You cannot shrink a volume beyond the point where any unmovable files are located. See the … Read more