Also between W7 or W10 I chose debian.
Well I don't have money to spend for W+AntiVirus+Office+ a lot of other licences
wile I could do the same things for free of charge BUT with a little extra work.
So, depend of a lot of condition to take a decision.
To be in line with bdfd I decide:
Definitively debian (some kind of linux), net-install+customization.
For more information ASK & give us more information for what You need.
I'am available to help.