I came across this other log from this morning which I have attached.I will wait until you have seen this before I proceed with your latest instructions.
Winlogon\Notify\SDNotify: C:\Program Files\Max Spyware Detector\SDNotify.dll
Did you install this ?
Continue with an installation attempt
Good news.I was able to instal successfully without need to carryout your latest fix. I do not recall installing the program you refer to. Should it be removed ?
Yes as it is a bit dubious 
Thanks I will attempt to remove it. I am very grateful for your guidance and support to enable PC Cleaner Pro to be removed and allow Avast to be reinstalled.