Given an Amazon review, indicate whether it is a 'Positive Review' or 'Negative Review'.

Windows XP was 32 bit, Windows 7 made the transition and had 32 bit and 64 bit versions. 32 bit can access 2.19 TB of a single hard disk. Thus a 3 TB or larger cannot be fully used by a 32 bit system. But, it does not end there. You can have Windows 7 or 8 running in 64 bit mode and not use but 2.19 TB if your Bios on your computer is 32 bit. When you install you will be given the option to format the drive for LBA which is 32 bit or GPT which is 64 bit. If you use GPT and your Bios is not been upgraded from 32 bit to 64 bit then your computer will not be able to mount the Hard disk. In which case you will have to start over and select LBA and run 32 bit unless you can upgrade your bios. The disks are good! It is your operating system (such as XP or Win 7 32 bit) or it is your bios that may limit you. Hope this helps.
Positive Review