In this case, you need to backup the recovery partition if you still want the ability to restore to factory settings. Under some circumstances, you may need to delete the recovery partition temporarily, for example, you want to add unallocated space to system drive but the hidden recovery partition is in the way. In general, the Windows 10 recovery partition takes 450MB, Windows 8 350MB, and Windows 7 200MB. The Windows recovery partition is much smaller than the factory recovery partition, so you won’t mix them.
While installing Windows 10/8/7, Windows will also create a recovery partition, which allows you to use recovery options when your computer has problems. this recovery partitions enables you to restore computer to the factory default setting by pressing a specific key. What is this recovery partition and OEM partition? Many computer manufacturers will create a recovery partition, which consumes a few to a dozen more gigabytes disk space. When you open Disk Management to look into it, you’ll see a recovery partition or OEM partition taking a lot of space of your disk. If you take a close look at your hard drive, you may find out that there is less disk space than it should have. What is the hidden recovery partition for?