I partitioned my SSD into two parts trying to install another OS to the newly unallocated partition. Rebooted into boot menu, but couldn't find my USB drive in the menu. Anyways I said nevermind it's okay and decided to boot normally. It booted without any problem and then for whatever reason I shut down the pc. Turn it back on a little later, now it's stuck at the LENOVO splash screen, won't boot no matter what I do
Do you have a Windows 8 or 7 recovery media? If so, boot to that, enter advance options and do a system restore or boot fix (boot fix is your last option if using a Windows 7 recovery img). This might fix the boot but, the okr system is broken for good unless you purchase recovery disks.