Ubuntu not booting up

[veecee124]

Did you use one of the pre-compiled remastered ISOs? Yes
If so, which one? Ubuntu MATE 16.04.1 LTS
If you remastered your own ISO, what was the source ISO (distribution, version, 32-bit or 64-bit)?

Did you install on to the main SSD or to an external (USB) medium?
USB

While partitioning your target disk during installation, did you create (and use) a GPT partition table and an EFI partition?
I HAVE NOT DONE ANYTHING MATE BUT W laptop
What was the EXACT error message you saw, if any, and at what stage of install etc?
I INSTALLED UBUNTU MATE successfully but WHEN I RESTATRTED LAPTOP BIOS SCREN CAME UP AND NOTHING IS HAPPENING .
I PRESSED F7 AND NOTED THERE IS STILL WINDOWS Boot Option though I erased windows from
Which model of RDP Thinbook are you using?
The 14-inch model with Intel Atom X5-8300