Windows 10: Windows 10 Upgrade OEM Reserved Partition

I upgraded my custom built desktop from Windows 8.1 Pro With Media Center (Originally Windows 7 Pro Retail), and I've noticed I now have an OEM (Reserved) partition on my drive. I'm just about to do a clean install, and would like to know if it's safe to delete or whether I have to leave it there?

:)

 

if you upgrade to Win 10 from a OEM Win 8 Computer be aware

if you upgrade to Win 10 from a OEM Win 8 Computer be aware

if you have a OEM Windows 8 computer (Hewlett-Packard,Acer,Toshiba ect.) and installed Windows 8.1

it adds a extra 350mb recovery partition

now if you had to restore back to Windows 8 from the OEM recovery Partition the extra 350mb recovery

gets left on the hard drive

now from a fresh install back to Windows 8 from the OEM recovery partition you upgrade to Windows 8.1 it adds another 350mb recovery partition so now there is 2 350mb recovery partition and if you keep going back to Windows 8 from the OEM recovery partition
and upgrade to Windows 8.1 it adds another

Windows defrag see's these 350mb recovery partition as Local Disk (\\?\VOLUME and can not defrag them

i asked this question on July 8

upgrade to Win 10 but Too Many Recovery Partitions from Win 8.1

Jayant Gupta a Microsoft Support Engineer in this post say's

" i would like to provide you with the information that, if you have another HD then I would suggest you to re-install the OS and get ready to upgrade to Windows 10. Having too many reserved partitions might cause Windows 10 upgrade to fail "

upgrade to Win 10 but Too Many Recovery Partitions from Win 8.1

please be aware if you plan to upgrade to Windows 10



James

 

Partitions before Clean Install of Win 10

I deleted the System Reserved partition created by Win 8.1 and delete the Win 8.1 windows install. . The new System Reserved partition created by Win 10 install is 500 Mb, larger than the one created by Win 8.1.

The OEM partition was left well enough alone.

 

Yes, you can safely remove it, I just did it myself, clean setup works just fine.