"40drhol"? If you are re-installing the OS, when you re-install it will ask if you want to format. If the HDD is not the Primary HDD in your computer. a spare HDD, If the HDD is compatible with your computer interface you can install as a slave/second/primary, depending on the interface/pin outs, or load a different OS on it if you wish and have a Dual-Boot. If it's a second drive in your computer, Open Start Menu, Computer, Select the HDD, just right click and format ,select File System.
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"40drhol"? If you are re-installing the OS, when you re-install it will ask if you want to format. If the HDD is not the Primary HDD in your computer. a spare HDD, If the HDD is compatible with your computer interface you can install as a slave/second/primary, depending on the interface/pin outs, or load a different OS on it if you wish and have a Dual-Boot. If it's a second drive in your computer, Open Start Menu, Computer, Select the HDD, just right click and format ,select File System.