What Is Recovery Partition?
Recovery partition is a small partition on your hard drive that can help you restore
your Windows or troubleshoot system issues. There are two kinds of recovery
partitions you may see in Windows 10/8/7.
Windows recovery partition
When installing a Windows operating system (OS) on a hard drive, and if you use
Windows Setup to create new partition on an MBR disk, Windows will create a system
reserved partition, and if it is a GPT disk, then Windows will create a recovery
partition and a EFI
system partition without drive letter. The recovery partition on Windows 10
consumes about 450MB, Windows 8/8.1 200MB, and Windows 7 100MB.
This recovery partition is to hold the Windows Recovery Environment (WinRE), which
can be explored if you manually assign a drive letter to it. If you delete this
partition, you won’t be able to use Windows Recovery options. If you create Windows
10 recovery disk, Windows will give you an option to remove the recovery
partition. With the recovery drive, you can still use Windows recovery options.
Otherwise, if you install Windows on a hard drive containing multiple partitions,
Windows will save the WinRE in a folder named Recovery in the root directory of your
system drive (C: drive) without leaving a recovery partition.
OEM recovery partition
Apart from the recovery partition of Windows, there may be another recovery partition
created by the computer manufacturer like Lenovo and Dell that has made their
computer come with an OEM recovery partition consuming about 7 to 20 GB, which
contains the WinRE and their factory installation files.
On some computers, the WinRE and the factory installation are separately stored on
two partitions, so you may see two OEM partitions on your computer. This OEM
partition allows you to press a specified key to boot into Recovery Environment, so
you can recover your OS to factory setting without a Windows installation disc. If
you have a copy of Windows installation, you can delete this OEM partition to free
up more disk space.
Why An Extra Recovery Partition Created During Upgrade?
Every time when you upgrade Windows to the next version, the upgrade program will
create a recovery partition if it detects that there is no sufficient space on your
recovery partition (GPT disk) or system reserved partition (MBR disk). There is no
wonder that you have many recovery partitions after upgrading to Windows 10. If you
don’t want Windows to create another recovery partition, you can increase
the size of recovery partition or system reserved partition before upgrading
to Windows 10.
According to Microsoft, the previous Windows version recovery partition will be
nonfunctional, so you can delete the previous recovery partition to free up some
disk space. As you may know that Windows can only shrink a partition from its right
side, so you can tell which recovery partition was new created by upgrading to
Windows 10. For example, as the screenshot below, the 100MB recovery partition was
created when installing Windows 7, the 200MB recovery partition was created when
upgrading Windows 7 to Windows 8, the 500MB recovery partition was created when
upgrading Windows 8 to Windows 10, and the OEM recovery partition created by PC
manufacturer before shipping.
As you see the new created Windows recovery partition stands in the way of extending
system partition. If you do not want to delete the recovery partition, you can move Windows 10 recovery partition without data loss.
How to Delete Recovery Partition in Windows 10?
You cannot delete a recovery partition with Windows
10 Disk Management for it has crucial files, but you can use
diskpart.exe to delete recovery partition. However, you still cannot extend the
remaining partition with the new created unallocated space if the recovery partition
appears before the C: drive. Hence, you need third party partition software to do
this job. AOMEI Partition Assistant Standard, free partition software, can delete
recovery partition and extend a partition as long as there is unallocated space on
1. Download this free software. Install and launch
2. Right click the recovery partition you want to delete and select "Delete
Partition". Then you can see the recovery partition becomes an unallocated
space. Actually no changes will be made until you confirm and click Apply.
3. Click "Merge Partitions". In the pop-out window, check the unallocated
space and the partition you want to extend.
4. Check the pending operations and click Apply to save the changes.
This operation will complete under AOMEI PreOS mode, so do not be panic when your
How to Create A Recovery Partition?
Many users have met the problem that OEM partition won’t work after upgrading to
Windows 10. What to do when you want to use recovery options only to find you have
mistakenly delete the recovery partition? You can use AOMEI OneKey Recovery to create a recovery
partition on Windows 10 to backup and restore your current system including
all the programs installed on C: drive. It also allows you to press a specified key
“F1” or “A” to boot into AOMEI OneKey Recovery environment when your computer
After creating the recovery partition, you can also keep the system backup image
files in other locations besides the recovery partition, which means you can keep
many system backups at same time. When system fails to work, you can just press the
Specified key to boot into AOMEI OneKey Recovery and select the system backup to restore
The recovery partition after upgrading to Windows 10 won’t consumes much space on
your hard drive, so it is recommended to leave it be. If you really want to get rid
of recovery partition, backup essential files before deleting.