Hi, Just fresh installed Windows 8.1 with update Enterprise x64 (using a boot USB created from the ISO) on my main computer. the OS drive is 128GB SSD. One thing I noticed was that when the OS installer created the GPT partitions automatically, the EFI only has 99MB. I previously had Windows 8.1 x64 installed on the same drive and same computer, with a EFI of 100MB. So my question is, what could possibly caused this change? The only thing I did before the installation was I used low level format tool on the SSD (quick format to remove boot info). Any input?