Hello Eddy(who tried to help me with this issue) and anyone who might like to try this if UI not responding/working

''Make sure Terminal Services is set to Automatic ''

Brief History below just for info:
UI not responding or responsive in AvastFree
Tried loads of suggestions re uninstalling, reinstalling, manually and with Avast tools......no joy.
Sort of gave up.
Tried a couple of other AV's, one of which I didn't like at all and also tried AVG............and guess what..........I had the same problem with AVG, so I thought I might as well go back to Avast and do some more searching for a possible solution.
I ran Task Manager and looked under processes to try to get more understanding of what might be the issue, though not really knowing what I was looking for.............I clicked through all the tabs in TM and when I got to USERS I thought it was a bit odd that there were no users listed!
I googled, as you do and found the suggestion about terminal services to resolve the User issue, and in doing this, it resolved the UI issue, for me, in Avast!
(For some reason mine had gotten, or was at some point, disabled, and I was unaware of this)
Voila
SS