Sandeep answered my question in the shoutchat box. thanks
I upgraded a client computer from windows 7 to 10 without problems. Sandeep's concern about database probably applies only to the main computer ( ours is a peer to peer network) ? The client computer I upgraded is 7 years old but working well without performance issues.
My dilemma is this for the main computer-buy a new windows 10 or upgrade the 7 machine? the main computer I have is only 3 years old and has i7-7000 , 32 g ram. 500G ssd and 1Tb 7200 drive built in, a Lenovo thinkcenter.
I thank all for insightful discussions and help over the years (especially Sandeep for his technical prowess).
I may appear to be a new member but i lost my previous credentials!