It sounds like your laptop gave out due to hardware failure rather than a virus. Since it looks like you might have both a drive failure and a RAM failure, you probably have something else wrong as well, such as a motherboard or PSU failure. You might want to make one last attempt to boot a lightweight linux distro, like DSL, from a usb flash drive. Try every possible RAM configuration, try installing to HDD, run RAM and drive diagnostics.
If you bought it last year it should still be under warranty for a few more days. How did you make the purchase? Do you still have the receipt?
If you bought it from Best Buy with an electronic payment method, they should be able to recreate the receipt if you don't have it.
If it was purchased with a credit card, the warranty should be extended 1 year from the end of the initial warranty period. Some banks offer the same kind of protection with their debit cards. If for some reason it's no longer under the original warranty, it might be covered under one of those kinds of policies.
If it's still under warranty, you probably have 10 days to get it processed. If you can't figure it out tonight, stop fiddling with it yourself and file a claim. You'll most likely end up with a refurbished computer that currently sells for whatever you paid for the one you have. Even taking into consideration the Black Friday discount, there's a good chance you'll come away with a better computer in a lot better condition.
