Disk Management treats the recovery partition as protected, so you need
to use diskpart to forcefully remove it.
For a Basic format disk :
- Run an elevated Command Prompt
- Enter the command
ReAgentC /Disable
- Enter the command
diskpart
- Use the following sub-commands:
- list disk - to present all disks on your computer
- select disk x – where
x is the number of the disk
- list partition – to display all partitions on the disk
- select partition y – where
y is the number of the partition
- delete partition override
For a dynamic format disk :
- Use the following
diskpart commands:
- list volume – to list all volumes
- select volume x – where
x is the number of the volume to remove
- delete volume override
For more information see
Fixed: Diskpart Delete Partition Override Not Working.