GrandkidsRus said: I used my Surface Pro with Windows 8.1, 64 bit. It would not work using Windows 10, 64bit. I ended up using only Q-2004; I had not yet bought Q 2021 and didn't have to although I may decide to buy it and start using it again. This worked beautifully AFTER I put the Quicken folder in my Documents folder! Thank you again!