I don't mind Windows 10; it's faster to boot and I can mostly avoid "metro". I just wish MS would de-metro their office products. Comparing Excel 2010 to 2016, I have about 10% more data area under 2010 than 2016. Why the big ugly areas for headers and footers? - all else being equal (font size, row height) I can fit 4 more rows of data on a maximized screen in Excel 2010 than 2016. And "metro" color schemes are hideous.