I was asleep and then I heard my computer restart and now I have this blue screen talking about your computer is infected. And this system security keeps poping up. And also I cant use any of my programs to clean it up. And to add that I cant even enter in safemood. What do I do?
It sounds quite possibly like a rogue anti-virus/anti mal-ware infection. In windows this is very common that something got through your firewall and did a drive by install. If you must be on windows you should do the following: surf with firefox (it does not allow drive by downloads--it alerts you to anything trying to download and only downloads to your desktop unless you tell it otherwise). If you are using the firewall that comes with Windows STOP and use a free firewall that is much superior (what comes with Windows may as well be nothing). Try www.comodo.com/home/free/free-protection.php
and download their free firewall. Their anti-virus is also amazing. Their firewall may annoy you at first as it will literally tell you everything and even on other comodo products. You must tell it to remember this is safe and it won't ask you again. *You must turn off your windows firewall as running more than one firewall decreases NOT increases its protection. In fact it can render them both useless!
As for finding your malware, how computer savvy and literate are you? If you are very savvy you can use hijack this and it will tell you everything on your computer and if you can read it you can detect where the issue is.
Also there is a really good anti-rogue (and free) detector Rogue Remover Free, which unfortunately has been discontinued but its' functions are still free in www.malwarebytes.org/mbam.php
Other things to also use: spyware blaster, spybot search and destroy. Heck just go to this page and do what it says:
And of course there are always Macs!