Thanks a lot for your replay!
Just to let you know, I back up my system and I upgrade to windows 10, the problem is gone, BUT, windows 10 is not stable as window 7, I experimented some very strange crashes, also I had loading problems using Play from East west.( they are working in an update to solve that, will be ready on 4 weeks)
So, I came back to Window 7, and now working again with cuabse 8.0.20, but just wanted to let you know about my results. So lets wait for the update… 
All the best
Brilliant. Thanks so much for your reply and sharing your experience. I don’t rely as heavily on Play so I may actually give 10 a go soon. Not sure whether to just update or do a complete re-format. Will see how we go!