This month only – get free shipping with no minimum purchase! Order early to avoid holiday shipping delays. Shop now
Find the perfect storage for your loved ones with our holiday gift guide! Shop now
Open

Why can't I reformat my 3TB drive after plugging it into a system running MacOS?

Instructions for erasing a drive larger than 2TB so that it can be reformatted.

MacOS will reformat drives larger than 2TB with a GUID Partition Table (GPT). Windows cannot reformat the drive until it is fully erased.

See Document ID: 207837 for details on how to erase the drive so it can be reformatted in Windows.