My main home computer is a 32 bit windows 10 upgraded over many years and I had to stay at 32 bit.  I needed a 64-bit windows 10 computer for running 3D slicing software for my 3D printer.  Rather than rebuild my main computer, and not have install software over many years, I decided to try a refurbished machine.  Extremely clean, inside and out, worked perfectly upon power up. Now I can slice many large STL print files that my 32 bit could not. What a bargain!