I just finished building my pc when i tried installing windows 8.1 from a usb and it got stuck on the getting ready screen, i've used the same usb to install windows 8.1 before and never had an issue. I tried with ubuntu and it gets stuck as well. I have and msi 970A-G43 mobo, an msi radeon r9 280 graphics card, an AMD FX 6300 processor 16 gb g skills ram, powered by a corsair CX600M power supply. I have it connected to a monitor through HDMI I also have a usb keyboard and usb mouse hooked up to it And a 1 tb WD blue HDD. What could be going wrong? So far i've changed the sata setting from ide to AHCI. And installed another HDD with windows vista installed and it runs the os fine except that i have no use of the keyboard and mouse probably the lack of drivers. but if i try to install ubuntu on this drive it freezes as well.