Virus help

so in las vegas there is a new virus going around. my friends family pc's got infected. also today i found out my step dads also has the same virus. this virus runs a fake malware virus program asking you to run scans, buy there product etc. you get the idea. Well my step dad lagged it and had it on there for a while and now it seems beyond repair to me. When i bootup and get to task manager to stop the virus from running. It goes for a bit but then the pc just freezes every single time without it letting windows finish loading from starting up. Now he can get into safety mode but thats about it. I need to get this HD running again or get stuff off the drive that he needs thats important. From my knowledge its fucked and scraped this is where i would format but he has important stuff on his so he needs an alternate route from reformatting. ADVICE!!!