Can I delete the OEM partition of Lenovo desktop running Windows 7

I often delete the backup partitions on computers when I think the space can be better used as part of the main C drive. This is especially useful when a client has an SSD, which still are mostly smaller than the older sata drives. Plus I install disk backup software on client's computers.  This is better than a factory restore because you restore the files and programs too.

I go into disk management, delete the recovery partition and then expand the C drive.  The recovery partitions  usually show themselves as primary partitions.  Right now I'm looking at a drive in a Lenovo desktop computer that's showing itself as an "OEM partition", rather than a primary partition.  It's not the active partition.   Can this OEM partition be deleted safely.  
Alan SilvermanOwnerAsked:
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Factory restore is needed when you sell the PC. You want to sell it clean, with none of your stuff on it...

There is always a utility installed by the manufacturer which allows you to create a set of recovery DVD's. That is always one of the first things that should be done after the PC was bought. With those DVD's you can remove the recovery partitions, as the DVD's do the same job, besides, you can also do a factory restore to a new disk if the old one dies.

For Windows 7, you can upgrade for free to Windows 10, I suggest you do that before the free offer expires. Once you have successfully upgraded, you won't need the recovery partitions or media anymore, since you can reinstall Windows 10 to the same PC for which the OS is licensed for, and then if you sell the PC, Windows 10 goes with it anyway.

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web_trackerComputer Service TechnicianCommented:
you can use the mini partition tool to delete the partition. It is a small free app and can be downloaded from
the recovery DVD's are a very good option, as suggested by Rindi
you can also make an image of the partition, and save it on a disk, or bluray DVD
i use the free paragon soft for this :
noxchoGlobal Support CoordinatorCommented:
You can delete it only IF it does not contain any system files.
In Windows Disk Management check which of the partitions have sings - SYSTEM and BOOT.
If this OEM partition is no involved then you are free to delete it.
Also, you can take backup of entire drive (which I always do when I get a new machine) to an external drive using third party backup tool.
Once backup is taken - I can delete whatever I want.
Plus later if I want to sell the machine and set it to default factory state - I can restore from my backup.
Alan SilvermanOwnerAuthor Commented:
Very good suggestions.
Thanks to all.  
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