DELETE a Recovery Partition when Disk Management won’t let you

Today I was preparing a 2.5″ SATA laptop hard drive for use in my wife’s mini-PC. The hard drive I was attempting to use came from an old Acer laptop. I connected the hard drive via a USB enclosure and attempted to clear out the old partitions and reformat. Unfortunately I found that the Windows 7 Disk Management interface would not allow me to delete the “System Recovery” partition.

Here is how I went about deleting that protected partition so I could format the ENTIRE drive for use in my wife’s computer:

#1 Open Command Prompt

#2 Type “diskpart” and press enter to launch the text based diskpart tool…

#3 Here is a transcript of the session:
Microsoft DiskPart version 6.1.7601
Copyright (C) 1999-2008 Microsoft Corporation.
On computer: V131

DISKPART> list disk

Disk ### Status Size Free Dyn Gpt
——– ————- ——- ——- — —
Disk 0 Online 298 GB 0 B
Disk 1 Online 7640 MB 0 B
Disk 2 Online 298 GB 285 GB


Disk 2 is now the selected disk.


Partition ### Type Size Offset
————- —————- ——- ——-
Partition 1 Recovery 13 GB 1024 KB


Partition 1 is now the selected partition.


Partition 1
Type : 27
Hidden: Yes
Active: No
Offset in Bytes: 1048576

Volume ### Ltr Label Fs Type Size Status Info
———- — ———– —– ———- ——- ——— ——–
* Volume 5 PQSERVICE NTFS Partition 13 GB Healthy Hidden


The current partition is already marked inactive.
(I didn’t need to do set inactive in this case, but it does not hurt anything to run it just in case…)


DiskPart successfully deleted the selected partition.


That’s it! Proceed with caution and of course adjust all the relevant disk/partition numbers to match YOUR computer. :-)

PS Here’s a helpful summary of the DISKPART options that are available:

Microsoft DiskPart version 6.1.7601


ACTIVE – Mark the selected partition as active.
ADD – Add a mirror to a simple volume.
ASSIGN – Assign a drive letter or mount point to the selected volume.
ATTRIBUTES – Manipulate volume or disk attributes.
ATTACH – Attaches a virtual disk file.
AUTOMOUNT – Enable and disable automatic mounting of basic volumes.
BREAK – Break a mirror set.
CLEAN – Clear the configuration information, or all information, off the
COMPACT – Attempts to reduce the physical size of the file.
CONVERT – Convert between different disk formats.
CREATE – Create a volume, partition or virtual disk.
DELETE – Delete an object.
DETAIL – Provide details about an object.
DETACH – Detaches a virtual disk file.
EXIT – Exit DiskPart.
EXTEND – Extend a volume.
EXPAND – Expands the maximum size available on a virtual disk.
FILESYSTEMS – Display current and supported file systems on the volume.
FORMAT – Format the volume or partition.
GPT – Assign attributes to the selected GPT partition.
HELP – Display a list of commands.
IMPORT – Import a disk group.
INACTIVE – Mark the selected partition as inactive.
LIST – Display a list of objects.
MERGE – Merges a child disk with its parents.
ONLINE – Online an object that is currently marked as offline.
OFFLINE – Offline an object that is currently marked as online.
RECOVER – Refreshes the state of all disks in the selected pack.
Attempts recovery on disks in the invalid pack, and
resynchronizes mirrored volumes and RAID5 volumes
that have stale plex or parity data.
REM – Does nothing. This is used to comment scripts.
REMOVE – Remove a drive letter or mount point assignment.
REPAIR – Repair a RAID-5 volume with a failed member.
RESCAN – Rescan the computer looking for disks and volumes.
RETAIN – Place a retained partition under a simple volume.
SAN – Display or set the SAN policy for the currently booted OS.
SELECT – Shift the focus to an object.
SETID – Change the partition type.
SHRINK – Reduce the size of the selected volume.
UNIQUEID – Displays or sets the GUID partition table (GPT) identifier or
master boot record (MBR) signature of a disk.

More helpful links:

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