I just tried to install ElementaryOS on my HP Probook. After the installer finishes, it reboots my computer, like normal. However, it does not boot upon restart. Instead, I get a black screen with white text that says "No OS Found" or something along those lines. GRUB does not appear to have loaded.
When I check the drive via the file browser using my LiveUSB stick, the OS files do appear to be installed on the hard drive, however it does not boot for some reason. I tried to install 3 times and got the same error. Please help!
EDIT: I fixed my issue by creating a 100MB "swap space" partition before my main filesystem.