Don't create any partitions. Install Windows to a blank hard drive. It will automatically create the partitions and format them. Zero out the drive. How did you create the USB installer. The only utility that I know of that will boot Windows 7 on a UEFI/GPT computer is Rufus. You probably are using 64bit but 32bit cannot boot from UEFI/GPT.
This is how I would accomplish the install. I have this model and it is a UEFI computer. First, create a bootable USB drive using Rufus. In the Partition scheme dropdown box select GPT scheme. Where you see FreeDos in the dropdown box select iso image, click the icon, and browse to the Windows 7 iso file.
Zero out the drive with Easeus or use the below clean all command.
Make sure UEFI is enabled
Boot the USB flash drive. I believe tapping F8 at boot will give you a boot menu where you can select the USB flash drive or make sure USB is the first boot device.
At the first screen that lists language press Shift + F10 which will bring up a command prompt. Type the following commands
diskpart This brings up the diskpart prompt
select disk 0 This will be zero if the computer has one drive
clean all This has the same affect as zeroing the drive with Easeus. If you do not wish to use Easeus then use this command. This will take awhile on a large drive
exit exits out of diskpart
exit exits out of command prompt
Continue with the install