Hello, My PC works well for hours while booting from HDD but freezes at different instances each time when trying to boot from CD or USB. I tried changing CD Drive but the result is same. The bootable CD is also working well in other PC. Can it be corrupt BIOS or hardware fault? My PC is 5 years old and Both (HDD and CDD) are IDE. Also I tried different data cable, RAM but the result is same.