I have a hardware system that is running Windows Pro 7 successfully. When I replace the HD with one that has Windows 8 Pro it will not run properly. Windows 8 boots but as soon as I log on there is a four note tune that plays continuously and after a couple of minutes I get a black screen and the system is frozen. Windows 8 was installed onto a clean formatted HD that replaced the one with Windows 7.

My system details are: ASUS Sabertooth MB, 8 GB RAM, 500 GB WD HD, Sapphire 7870 video card, Plextor DVD burner, 850 W p/s.

Any help would be most appreciated.