Currently our company uses Quickbooks 2014 for our accounting. Yes it’s old, but it does everything we need it to. It runs on a decently powerful Lenovo laptop that runs windows 7, since QB14 is not supported by W10. Thing is, other compatibility issues with the machine are pushing me to upgrade the OS sooner or later. Quickbooks recently went to a subscription model, which I am not going to consider. Can you still buy older versions of Quickbooks software and license keys?