The classic Master Boot Record (MBR) format maxes out at 2.2TB; you can’t use MBR formatting on partitions larger than that.
But a relatively new formatting standard — GPT — can handle drives of any size you’ll likely encounter in the foreseeable future.
Can access only half of a new 4TB drive
Reader Jeff Jones ran into a major snag when he tried to use his huge, new hard drive. That led in turn to several questions:
“I bought a new 4TB Seagate drive but then couldn’t do a Windows image or backup on it. Seagate support told me to download their DiscWizard tool and use that. The tech said all computers are outdated and Intel needs to produce a new chip to address all [new] hard drives. What is your take on this? I have a Windows 7 Home Edition PC.
“I’m a little scared to use DiscWizard or do anything that might change the system files, because I don’t have any backups and I’m currently using 213GB of my PC’s 500GB main drive. Searching Google was no help.
“Also, once I can make backups, how much space will I need for them? I presume the image of my 500GB main drive would be around 500GB.