I am still running Windows 7 on my desktop, so each year I wait to see if anyone mentions that they were able to run it on Windows 7. I saw that someone had done it, so it was a no-brainer for me to use it, as I've used H&R Block Deluxe + State for many years. It's straightforward to use, even if you have to go back and correct something, it will let you make the correction then pick back up where you left off.
After problems with another major name in tax software I switched to H&R Block. I’m so glad I did. After organizing my receipts filing my taxes was as easy as answering the questions the program asked.