Malware bytes turned my screen black?

[something]

One friend sent me a facebook link on twitter and turns out it was spam. I freaked out and downloaded a program called "Malware bytes" and let it scan for spyware or viruses. After it scanned my computer it found 3 spywares and I deleted them, in order to finish the operation it asked me to reboot my laptop and I cliked yes. It rebooted normally but when I clicked to log into my account the screen turned black and nothing happened. I tried rebooting it like 10 times and nothing happens, the black screen is always there. I went to safe mode and deleted the "malware bytes" program but it didn't work out and I don't know what to do. I have extremelly important data there, works for school (due to this week) and like a million of other archives. Help please! Oh and btw my computer is a sony vaio.