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Windows 7: EFI System Partition After Re-Install

11 Feb 2013   #1

Windows 7 64Bit
EFI System Partition After Re-Install


I reinstalled windows 7 today, When i got to the part where i have to format my SSD it wouldn't let me so i clicked "New" Then started the install.

Once installed, I go to disk management and i see "100mb EFI System Partition"

Now, Before i re installed windows i had just 100mb Windows Reservered, Why do i have this EFI thing instead?

When i started up my PC Before it would take about 16 seconds, Now it's around 2-3 Seconds more.

Anybody tell me why it installed this partition and can i remove it?


My System SpecsSystem Spec
11 Feb 2013   #2
Microsoft MVP


It seems you installed in UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Forums.

This video explains the difference between UEFI and Legacy BIOS:

If you find it gives you advantages with a BIOS GUI, supposed faster boot and the others mentioned then you might want to keep it. If not you can Bypass UEFI to Install WIn7
My System SpecsSystem Spec

 EFI System Partition After Re-Install

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