Combined two unallocated 2TB partitions into 4TB [SOLVED]
Recently I started to repurpose a 4TB 2.5″ SATA SSD but ran into an issue utilizing the entire SSD. Specifically, even after deleting the existing partitions I could only allocate ~2TB and ~2TB (as shown on Disk1 below)
Eventually, I realized that the issue was the drive had been setup as MBR instead of GPT. Here are the steps to remedy that and create a large contiguous 4TB partition. First the screenshot shows the steps, then the commands are listed in text format:
Click the Start Button, start typing Command
When it appears, right click Command Prompt and choose ‘Run as Administrator’
Run this command and hit Enter:
diskpartRun this command and hit Enter:
list disk
(Make note of the disk number you want to convert and enter it into the next command, in this case it was disk 1)Run this command and hit Enter: (replace “1” with whatever disk number you want to work on)
select disk 1Run this command and hit Enter:
clean(be careful with the clean step and make sure you select the proper disk number, because as soon as it you run the command it will make the data on the disk in question inaccessible))
Run this command and hit Enter:
convert gpt Run this command and hit Enter:
exit Voila, now you can close the command prompt and use the Windows Computer Management -> Disk Management to re-initialize the disk as GPT and create a volume in order to allocate the full partition size to 4TB!
