The followings are common operations in Disk Management, they're quite helpful to prepare a new disk, but when you want to manage disk partitions with the functions on disks already stored data, be careful to use them, instead, we recommend to use Partition Expert for both new disk and old disks.
Steps of marking partition as active is simple, just right-click on the partition you want to mark and choose Mark Partition as Active
But before you actually do perform this, please note that:
You can create partition on unallocated space or free space.
Here's how it works:
Right-click on the target partition and choose Format from the menu, click OK to format.
Note and warning: Formatting a volume will destroy any data on the partition. Be sure to back up any data you want to save before you begin.
Tips: it's faster to check the Perform a quick format.
Shrink volume is a way of creating free or unallocated space, which can be used for creating new partition and extend volume (dynamic disk). Here are the steps:
Note: Free or unallocated space created by shrinking volume cannot be used for extending partition on Basic disks.
Delete a volume is the main method of creating unallocated or free space to extend volume in low disk space, and this deletion will do damage to your data, so make a backup on important files first is recommended.
When there's continuous unallocated or free space to the drive you want to extend, the Extend Volume option of that drive will be activated. Then do the followings to extend: