Re: Crashed again, can't install anything now.
Depending on how old your Lenovo is it could be overheating but generally Toshibias are more notorious for overheating.
Does your Lenovo have a dvd/cd drive?
If so; go and get the LIVE ISO IMAGE of Ubuntu and burn it to DVD/CD and you could install your distro that way--
Manually create a partition: ext3 (/) journaling file system for Ubuntu about 20GB
Than create a partition dev/sda for the swap (if Win's 8 will let you)
With Windows 8 you have to disable the secure boot--
You can try a LIVE cd and run:
That's a small letter L.
That will show you all of the partitions on your computer.
It may be that you don't have a large enough USB Memory Stick-- Or like Cheesehead mentioned it's not formatted correctly-
When I installed Ubuntu I allocated 20GB for the journaling file system (/) ext3
And than I allocated an additional 2GB for the swap partition-
Hope that helps
Check yourself before you wreck yourself-
-:- Slackware & Voyager Xubuntu 16.04 -:-