I have finished installing Ubuntu GNOME 17.04, and restarted when it told me to. When I restarted, my computer rebooted back into the USB drive, so I turned the PC off, took out the USB, and turned the PC on again. When I rebooted, I was greeted with a screen that said, "Reboot and select proper boot device or insert boot media." When I got this message I decided to go into my UEFI settings and change the boot order so that it was 1. HDD/SSD 2. USB etc. I rebooted the PC and got the same message. The computer didn't even show GRUB.
After this didn't work, I decided to boot from USB again and look at GParted. When I looked at the resulting Partitions, there were only 2 partitions. One for System Recovery, and one for storing data. I didn't see any partitions that were for Swap and the like. Could this be the reason why the computer didn't boot into the OS? I also tried reinstalling the OS again to no avail. Should I have done a custom install and add all the partitions I needed myself?
As of now I am on my PC using Windows 10, because this the only OS I know that will work right now.
The computer used is a Toshiba Satellite C55-B. Dual Core at 2.16 GHz. 4 GB of RAM. 500 GB HDD.