Store
Home > Disk Management Questions > 3TB Shows 746GB on Windows Server, What Should I Do to Solve It?

3TB Shows 746GB on Windows Server, What Should I Do to Solve It?

I have a problem; we have a 3TB SATA disk on the carry disk, connected to the physical server via USB. The problem is that only 746GB is read. The server is Windows Server 2012 R2, Windows 10 also has this problem. Will it be firmware? Any ideas?

Best Answered by

Sherly· Answered on Dec 20, 2023

Generally, this kind of problem is because your disk is initialized as MBR. Partitions on the MBR have a size limit. You can convert MBR to GPT in CMD using the Diskpart tool. But you need to know that Diskpart deletes all files and folders from your hard drive when changing the disk to GPT. So if you have important data, remember to back it up in advance. Next, I will show you how to use CMD to convert MBR to GPT to solve your problem.

1. Type CMD in the search box. Right-click on Command Prompt and select "Run as Administrator."

2. Open Command Prompt, type DiskPart, and press Enter.

Then, use the commands below one by one:

  • list disk
  • select disk * (Replace * with the target disk number)
  • clean
  • convert mbr
  • exit

As you can see, the "clean" command will delete all the data on your disk, so I used to turn to EaseUS Partition Master Server.

Free Download

100% Secure

  24/7 Tech Chat

Free Inquiry

The third-party software helps convert MBR to GPT without losing data; hence, if you are new to computing, EaseUS Partition Master Server is a better choice for avoiding data loss.

If your issue still exists, it may be because your USB-SATA interface is old and doesn't support it. I've seen this before.
Get a new USB3 - SATA enclosure and move the drive into it. 

Sincerely hope my answer can help you out.

See Also:

Convert MBR to GPT Without Data Loss

People Also Ask

I Converted My HDD from MBR to GPT Using CMD Now Windows Won't Boot

A user posted the question - I converted my HDD from MBR to GPT using CMD now Windows won't boot. To help him solve this problem, this post will introduce how to do it.

Roxanne

Jul 31, 2023

Help, How Can I Convert MBR to GPT Without Data Loss on Windows Server

As it is known to all, converting MBR to GPT will delete all data on the origin disk. This article focuses on this issue and helps convert MBR to GPT without data loss on Windows Server.

Sherly

Dec 20, 2023

Do I Need to Convert My C Drive from MBR to GPT to Install an NVMe SSD?

Do I need to convert my C drive from MBR to GPT to install an NVMe SSD? This article will discuss whether you need to convert C drive from MBR to GPT and how to convert.

Roxanne

Dec 20, 2023

Changed the Disk to GPT Partition Style to Install Linux but Windows Can't Boot After That

Change the disk to GPT partition style to install Linux but can't install Windows after that? Don't worry. This post has what you want, which contains a full guide on how to fix this problem.

Roxanne

Jul 31, 2023

Can Somebody Help Me with Can't Convert GPT System Drive Back to MBR?

If you need some practical methods to fix can't convert the GPT system drive back to MBR. This post can help you solve the problem by offering two tested solutions, which are followed by specific steps.

Roxanne

Jul 31, 2023

Fixed: Convert Main Disk from MBR to GPT

Are you looking for a reliable solution to convert the main disk from MBR to GPT? This article will give you an answer by providing one tested and worked method.

Roxanne

Jul 31, 2023
Browse All Questions
Trustpilot
Company
Discover EaseUS
Reviews & Awards
Contact EaseUS
Resellers
Affiliates
Outsourcing Service
My Account
Resources
PC Data Recovery Tips
Mac Data Recovery Tips
Storage Media Recovery Tips
Data Backup Tips
Disk Partition Tips
Disk Cloning Tips
SSD Cloning Software
PC Transfer Tips
Knowledge Center
Computer Solutions
AI Navigate
Privacy
Uninstall
Refund Policy
Privacy Policy
Do Not Sell
License Agreement
Terms & Conditions
Q&A
Data Recovery Questions
Data Backup Questions
Disk Management Questions
Follow us
DMCA.com Protection Status

Copyright ©   EaseUS. All rights reserved.

English