Microsoft isn't what it used to be.. okay, in the past they have messed up here and there but the since they started with Win 10 things have gone downhill at an alarming rate..
Aside from the problems with Windows 10, I got the impression that things were generally improving since got rid of Ballmer. Previously they've had:
Problems with getting people to adopt Windows 8
Problems with Windows RT, since it only worked on ARM
The unsuccessful Microsoft-Nokia partnership
Starter Editions of Windows on netbooks, which were crippled
Fines from the EU over Internet Explorer
The decline of Windows Mobile / Windows Phone
Their involvement with the Rockstar Consortium
Patent litigation against Android
Hostility towards Linux netbooks
The anti-Linux "Get The Facts" nonsense
The Xbox "Red Ring of Death" defect
The controversy with the Xbox One launch
Problems with Windows Vista, even after around six years of development
The "Scroogle" scaremongering
The controversial partnership with Novell