My dell laptop won't log on why?

[Cla3709b]

I turn on my dell laptop with windows vista and it goes straight to my user account when I type in the password it then says the user profile service failed to log on user profile cannot be loaded. Please help

 

[C12Friedman]

I'll suggest working through the steps in this thread http://www.tomshardware.com/forum/242796-44-simple-free-guide-removing-malware see if you can get anywhere that way