Jim Roseberry
abacab
I always wanted to try one of these Intel NUC's for a small footprint bare bones system. Not the cheapest, but surely the most compact.
Just add RAM, SSD, and Windows. Use the VESA mount to slap it to the back of a monitor, for an all-in-one. 
https://www.newegg.com/Product/ProductList.aspx?Description=intel%20nuc&Submit=ENE
Essentially the equivalent of a laptop...
Yup, except for the messy part of having to pry the keyboard and mobo out to access the RAM or hard drive, LOL!!!