OK I'm a novice computer guy but I can usually figure out my problems with internet help. My original Seagate 2TB hard drive crapped out on my HP Pavilion 500-424 PC. I bought a new 2TB hard drive along with a Windows 10 disc to install. The sales guy said it would be like installing a normal program from CD, just put it in and follow the prompts. Trouble is I keep getting a no OS message, boot device not found, hard disc 3FO. Apparently I'm missing something big here. Any advice on installing Windows 10 on a blank internal hard disc ? Thanks