cryptowall 3.0 removal

I’m a newbie here & my computer has this virus which avast has not removed.I dl’d & installed…ran a quick scan …ran a boot scan…& another quick scan this am & i still have this…can somebody help ? any tips ?

follow instructions here https://forum.avast.com/index.php?topic=53253.0
attach Malwarebytes and Farbar Recovery Scan Tool logs … 3 logs total

when done, malware experts will assist you … there may be some waiting time