Windows – Why doesn’t Windows 7 always create 100MB partition

hard drivepartitioningwindowswindows 7

I have two 500GB hard drives in my laptop. I have formatted both so they contain nothing. When I'm installing Windows 7, depending on the drive I choose to install Windows on I may or may not get the 100MB added.

When I install on drive 0 it doesn't get added.

When I install on drive 1 it always gets added.

Why would the partition be added on one drive or not the other?

I think it's the primary HDD that doesn't get the 100MB and the secondary one does.

Best Answer

This “stub” of a partition, which is new in Windows 7, serves two functions. First, it holds the Boot Manager code and the Boot Configuration Database.
Second, it reserves space for the startup files required by the BitLocker Drive Encryption feature. If you ever decide to encrypt your system drive using BitLocker, you won’t have to repartition your system drive to make it possible.

Understand (and Get Rid of) the Mysterious Small Partition

I really don't understand why it wouldn't be created if you install to the first drive, unless you have a pre-existing partition on it. Usually, the partition is always created on an empty drive for the reasons quoted above.

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