[Blind-sysadmins] linux live CD?

hello friends: my pc has infected by a strange virus it can't be removed at all, even its name unknown. can I find live CD for Linux help me to clean it, specially my flash card infected too and it contains very important files I can't format it anyway. please help me as you can. always find: user/local setting/temp/svchoost.exe and many files *.tmp in user application data, also CMD running in task manager. each time make scan the program detect different warm/trogen, and the problem still not solved. pc is so slow, all anti virus sites not open, also sometimes search engine. am sorry if it off topic, but hope find solution. thanks ibraam