How to Setup Master and Slave in BIOS for Two Hard Drive Disk in a Single System

1. Steps

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      Restart your computer. Watch carefully for the initial boot screen to display and tap the necessary key to over-ride the boot process. Depending on your computer model it will be either "Delete," or "F2." Press it a few times before your Operating System (Windows, etc.) starts up. If you see the operating system display, you've missed the opportunity. You will have to restart your computer again. If you do it right, the BIOS setup screen appears.
2. 
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   If prompted for a password, enter it and press the "Enter" key.
3. 
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   Navigate to the "CMOS Setup" and press "Enter". Usually the first BIOS screen to appear is the primary, or basic screen.
4. 
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   In the CMOS menu, find "Hard Disk" and then the "Primary Master" selection.Press the "Enter" key to detect and configure the primary hard disk, making it the Master Drive.
5. 
   
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   Move the cursor to the "Primary Slave" selection and press "Enter" again. Your system will repeat the same process for the second drive, but making this one the Slave Drive.
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   Press the "F10" key to save the changes. Exit the setup utility. The computer will restart. If not, manually restart it. Allow the computer to boot normally and you should see all your drives (C, D, E, F…).