http://www.pcgamer.com/microsoft-points-finger-at-amd-for-spectre-and-meltdown-patches-bricking-some-pcs/ >Microsoft has temporarily stopped issuing Spectre and Meltdown updates to some AMD systems after users reported the patches were rendering their rigs unbootable. >Users took to Microsoft's support forums to vent their complaints. Those affected are all running older processors, such as the Athlon X2 6000+. Microsoft acknowledged the reports in a separate support page, but said AMD's documentation is ultimately to blame, rather than the patch code.