“To get more storage space, I bought a new hard drive which is 3TB. After I connect it to my computer, I find that there is only 2TB can be used in Disk Management. Why is there such a situation in my computer? Is there any wrong with my hard drive?” .
In fact, the above problem is common and you might have encountered such a situation before. In the case, you complain that the hard drive manufacturer is irresponsible. Actually, there is nothing wrong with the hard drive. The only reason is that your hard drive is in MBR format.
As you know, MBR and GPT are two different partition type in disk. MBR can only support at most 2TB disk whereas GPT breaks this limitation and it can support disk size up to 18 EB. If your 3TB hard drive is in MBR format, it is possible that it only uses 2TB in computer. To solve this problem and make the best use of disk space, you need to convert your 3TB hard drive to GPT disk type instead of MBR type.
When searching “my 3TB hard drive only uses 2TB” in Google, you can find many forums discussing about this issue, and the most answer is to convert disk from MBR to GPT. But how to change your MBR disk to GPT disk? Generally, there are three tools you can use.
When mentioning disk conversion, you may think of Windows built-in tool called Disk Management at once. You can use this tool to do partition and disk management. As to converting MBR disk to GPT disk, firstly you need to use its “Delete Volume” feature to delete all volumes on your hard drive. Then you can achieve your aim by using “Convert to GPT Disk” function.
However, this is a demerit:
You must delete all volumes which makes your data loss. You must backup data previously. If there is a volume or partition on disk, you can’t change MBR to GPT, because “Convert to GPT Disk” feature becomes grey.
In addition, Windows has another utility called Diskpart command which can be used to solve disk conversion problem. Just type command line one by one: list disk→select disk n→clean→convert gpt as the following screenshot. This way also has a limitation that you must clean all data.
Even though the above two methods can solve “my 3TB hard drive only uses 2TB” problem, you must delete your data. Here is a professional partition and disk manager called MiniTool Partition Wizard which makes up for the deficiency of those two tools. With this software, you can convert MBR to GPT without data loss.
1. Just download this manager and go to its main interface.
2. Then right click your hard drive and select “Convert MBR Disk to GPT Disk”.
3. Then click “Apply” to finish the operation.
Do as the above steps, then you can make use of the rest disk space.
By changing MBR disk to GPT disk,“3TB hard drive only uses 2TB” issue can be solved well. MiniTool Partition Wizard really helps you much in disk and partition management. Try it now.
MiniTool Partition Wizard also can support to convert GPT to MBR, just try it when there is a need.