On the left, click on the Disk # part, and click on “Convert to GPT Disk”.Ħ. (One partition will be 2048GB and the other as 746GB or something like that)ĥ. The drive should show up as “unallocated partition” and may show up as two separate partitions. Right-click on the partition of selected drive and Delete Volume… to delete the partition.Ĥ. Look for your drive at the bottom of the screen (Disk 1. Go to “My Computer,” right-click on it, and select “Manage” from the menu.Ģ. *** NOTE: Please back up information you want to keep before formatting drive. One possible explanation is that the device is originally intended to be operated as an USB device, so the controller board is designed to get past that 2TB limit, so without the additional hardware, you didn’t see the entire 3TB as one volume. When you used your external hard drive, the 3TB hard drive was recognized without any problems, but when you installed it into your computer, hard drive size detection became an issue. So in theory, if you have an 8TB hard drive, you can only make four 2TB partitions with MBR, whereas with GPT, you can make one 8TB partition or a hundred 80GB partitions.
The MBR system will allow you to create a partition of 2TB in size, while the GPT system will allow you to go beyond the 2TB limit. When you install your operating system, like Windows XP or Windows 7, the drive needs to be formatted as MBR because that drive needs to be bootable in order to load an operating system. We’ll go through the difference between MBR and GPT formats, discuss how it originally recognizes with USB and not SATA, and finally how to format the drive in Windows.įirst, hard drives are typically formatted in MBR (Master Boot Record) or GPT (GUID Partition Table). Here’s a quick explanation of what is going on and how to format the drive so that it is usable with 3TB or roughly 2.7TB due to allocation of drive space. Since he did not have a USB 3.0 port on his computer, he wanted to move his files via SATA, but when he removed it from the external enclosure and connected the hard drive straight into the computer, it only showed 349GB (or sometimes 746GB if it is a WD hard drive). A friend found a good deal on a Seagate 3TB external hard drive with USB 3.0 speeds. Today is the day after Thanksgiving – otherwise known as Black Friday.
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