There's a part of me that wants to pay for an extra year so I don't have to deal with this right now. BUT, I have to buy one new computer for an additional hire and I don't want to have one person on Windows 10 and everyone else on Windows 7. So upgrading I am. Besides, the desktops in our office are the same ones I bought when we opened - 10 years ago. They have certainly served us well.
