OEM parttion

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Dishank

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Feb 24, 2015
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I bought a new laptop today with ubuntu.
while installing win 7 i deleted my OEM partition.
it was showing 300 mb bt after deleting it, it gave me approx 200 gb.
did i do wrong?
please help.
wat should i do..
 
Joined
Apr 1, 2015
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OEM = Original Equipment Manufacturer

An OEM Partition is just a partition set aside by whoever made your laptop and it usually holds recovery information to restore your computer to factory-default (a.k.a. "brand new).

1 hard drive can have multiple partitions. A Windows Example (Not to scale!):
100MB = Windows reserved
200GB = Windows ("C: Drive")
50GB = OEM/Recovery partition

Linux example (Not to scale!):
512MB = /boot
1GB = Swap
200GB = / (root fs)
300MB = OEM Partition

When installing an OS from scratch, the Installer (in your case, Windows install CD) looks at the HD as a whole. When you delete a partition, it "merges" the partition space into another partition or leaves it blank.

It sounds like that's exactly what happened here. It merged the 300MB (0.3GB) with your system partition to make it 200GB total. The 300MB OEM partition is permanently gone. There's nothing wrong with this, it just means you don't have access to whatever that partition did or held.

Personally, since I don't depend on OEM partitions or help-support from the OEM and prefer to have ALL HD space available to me, I'll specifically do whatever I can to erase the OEM/Recovery partitions on my computers.

Hope this helps! :)
 

DaveBurnett

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Nov 11, 2002
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12,970
Show us a disk and partition map using the disk management tool so we can see what is there now.
 
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