I have HP Envy 15 with AMD A10-5750M APU with Radeon graphics and 8 GB RAM. I ran Win 10 without a problem for at least a year and several days ago, while booting system BSoD appears and PC goes into restart loop. I tried booting from USB with various versions of win 10,even win 8 and either during boot I get blue screen or pc completly shuts down. I installed Ubuntu 14.04 and everything works, but as soon as I try to boot win from USB pc shuts down. Please help!