> Microsoft, for all their faults, is notorious for having fantastic QA and not breaking old apps when they update Windows, and would never have let that happen

> Microsoft, for all their faults, is notorious for having fantastic QA and not breaking old apps when they update Windows, and would never have let that happen. Windows 8.1 has had a number of severe problems.[1][2][3] [1] http://www.bit-tech.net/news/bits/2013/10/21/win-rt-81-pulled/1 http://www.bit-tech.net/news/bits/2013/10/21/win-rt-81-pulle... [2] http://www.forbes.com/sites/larrymagid/2013/10/17/windows-8-1-upgrade-not-working-after-3-attempts-on-2-machines/ http://www.forbes.com/sites/larrymagid/2013/10/17/windows-8-... [3] Anecdotally, a coworker tried upgrading on two separate devices (after Microsoft pulled 8.1 for awhile and then made it available again). On both it installed fine but disabled all of his Metro apps from starting.