Laptop Stuck on Restart

[azlindley]

My HP Envy brand new laptop was lagging badly after being used by my very computer illiterate SO while I was at work. Now I cannot get it to do anything. I've tried control, alt, delete...turning off and on... and I'm at a loss. Of course, he says he "didn't do anything" to it, and I have no idea except he wad attempting to send any email which he said he did. Please, anyone have any ideas?

 

[webworkings]

I would be checking the system for viruses, malware, etc. Also check to see if anything was downloaded to it recently and installed. Oh, and check the browser history.