Greatest tech comeback No. 8: Windows 7
After the disaster known as Windows Vista, anything beyond the second coming of Microsoft Bob was sure to be an improvement. Still, Windows 7 restored Microsoft's battered reputation for desktop OSes by being what Vista was not -- reliable and relatively bug-free, with less crapware and fewer annoying idiosyncrasies. Little wonder then that Win 7 was adopted much more quickly than its pathetic predecessor. Sadly for Redmond, that comeback appears to have been stalled by Windows 8, which is proving even less popular than Vista, if such a thing is possible.