Question about Avira Free Antivirus

Your post seems to suggest that you are still using Windows 7.
Is that correct?

Have you begun following the steps given on our Preliminary Cleanup Steps  as requested last night? I have to stress IF there is perhaps malware on your computer that is triggering these alerts by Avira the longer you wait the stronger the chance the problem could get worse.

Until you do follow all of the steps in our Preliminary Cleanup Steps and post the logs there is very little that can be suggested. This message Does very often indicate malware is on the machine and attempting to access and infect the registry. Avira IS doing what it is supposed to do, block those attempts, but Avira or any other anti-virus program for that matter, is not set up to remove PUP's (Potentially Unwanted Programs) the programs requested in our Preliminary Cleanup steps ARE exactly the programs needed. If you do not use those then the malware will continue to work in the back ground bringing in other malware which possibly is why you are getting these Alerts from Avira...each time a new piece of malware is brought it then Avira has to stop its access to the Registry. It Does NOT remove that malware, just blocks its access to the registry. The longer they stay the more danger your computer is in.
We do have to see the logs from those Preliminary Steps programs before we can offer any more help.

Oh cricketm, the other two programs are much easier to run than Malwarebytes. I PROMISE. We make every effort to use programs that are super easy, NOT complicate to be able to work with everybody. You CAN do this your self...for FREE, and not have to pay somebody $50 or more to do things you can do in really just a very few minutes....Truly, that is all this will take. Take it to a shop and you'll have to pay for just a few minutes of very easy work. 

CCleaner just cleans out general unnecessary junk, no need to say what was cleaned but did Malwarebytes' find anything? If so I can tell you how to tell us what was found and removed.