To be fair, Windows 1.0 was unusable. Windows 2.1 was "almost there," as was Windows/286. I think we should list the "birth of windows" as happening somewhere around 1990 when Windows 3.0 escaped from Redmond.
I will give MSFT credit. With the exception of ME, Vista and Windows 8, every version of Windows was a noticeable improvement upon the last.
Even as a Unix(tm) admin, I would even argue Server 2008 was not crap.