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Free Image Format ConversionThere's one important thing to keep in mind if you're upgrading from Windows 10 to Windows 11 – Windows 11 requires your computer to have UEFI boot mode. However, some users reported getting the error message “Windows cannot be installed to this disk. The selected disk has an MBR partition table” while trying to install Windows 11, even after they've changed the boot mode.
Users see this error message because UEFI mode only supports GPT partition tables, while their computer has an MBR partition table. If you encounter the same problem, the solution is to convert the disk from MBR to GPT. In the following sections, we will show you how to do that.
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| Solutions That Work | Step-by-Step Troubleshooting |
|---|---|
| 1. Convert MBR to GPT with Software | Right-click the MBR disk to convert and select "Convert to GPT"...Full Steps |
| 2. Convert MBR to GPT with Disk Management | Step 1. Right-click the Windows icon and choose Disk Management...Full Steps |
| 3. Convert MBR to GPT with Command Prompt | Step 1. Shut down your computer, insert the Windows installation USB...Full Steps |
## Method 1: Convert MBR to GPT without Data Loss for Windows 11 Installation
The first method is the easiest and most convenient. You need to use a third-party software – AOMEI Partition Assistant Professional. The advantage of AOMEI Partition Assistant over the built-in disk formatting tool in Windows is that it won't cause any data loss. Besides, the operation is very simple. You can download this tool from the button below and learn how to convert MBR to GPT according to our guide.
Step 1: Download and run AOMEI Partition Assistant.
Step 2. Launch the Disk Converter and select Convert MBR to GPT, then click Next to proceed.
Step 3. Select the MBR disk that you want to convert to GPT and click "Convert" to start the conversion.
Method 2: Convert MBR to GPT Using Disk Management
On Windows, you can also use the built-in Disk Management tool to convert a disk from MBR to GPT. One of the built-in utilities is Disk Management, but note that you will have to delete the target disk first, which means losing all data on it. Make sure to back up everything beforehand.
Step 1. Right-click the Windows icon and select Disk Management.
2. In the "Disk Management" window, right-click on the target disk and select a partition, then click "Delete Volume". Repeat this process until you have deleted all volumes.
Step 3: Right-click on the MBR disk and select "Convert to GPT disk".
< strong > Step 4. After the conversion process is completed, your MBR disk will be converted to a GPT disk.
Method 3: Convert MBR to GPT Using the Command Prompt
If you have a Windows installation USB, you can convert the disk from MBR to GPT during the installation process. However, this will also result in data loss, so exercise caution if you choose this route.
Step 1: Shut down your computer and insert the Windows installation USB.
Step 2. Boot your computer from the installation USB drive.
Step 3. Press Shift + F10 during the Windows setup to open the Command Prompt.
Step 4. Enter the following command to convert the MBR disk to GPT:
- diskpart
- list disk
- select disk 1 (Select the disk where you want to install Windows, replace the number 1 with the actual number of your target disk)
- clean
- convert gpt
- Exit
Type that command, then close the Command Prompt window and continue with your Windows installation.
Minimum system requirements for Windows 11
In addition to UEFI boot mode and the GPT disk style, what else does the new Windows 11 require? Here are the minimum requirements for Windows 11. You can check the table below to see if your computer is eligible for an upgrade to Windows 11.
| Component | Minimum requirements |
| Processor | A compatible 64-bit processor (x86-64 or ARM64) with a clock speed of at least 1 GHz and 2 cores |
| Memory (RAM) | At least 4 GB |
| Storage | At least 64 GB |
| System firmware | UEFI |
| Security | Secure Boot enabled by default |
| Trusted Platform Module (TPM) version 2.0 | |
| Graphics card | Compatible with DirectX 12 or higher, with WDDM 2.0 driver |
| Display | High definition (720p) display, greater than 9 inches diagonal, 8 bits per color channel |
| Internet connection and Microsoft account | An internet connection and a Microsoft account are required for initial setup of Windows 11 Home. |
As of now, only users who have joined the Windows Insider program can download and upgrade to Windows 11. If you aren't enrolled as a Windows Insider yet, you can refer to this article to download and install Windows 11.
Download Windows 11: How to Download and Install Windows 11
How to download Windows 11? This article will guide you through the steps of downloading and installing Windows 11. Learn how to download Windows 11 on your PC or laptop.
Bottom line
The error "Windows cannot be installed to this disk. The selected disk has an MBR partition table" occurs when the disk's partition style is incompatible with the boot mode of your computer. If your PC boots in UEFI mode, the disk should be GPT-style. If it boots in BIOS mode, the disk should be MBR-style.
For users, the most convenient way is to convert disk from MBR to GPT with a partition master tool. We recommend this tool as the first choice because it's easy-to-use and won't affect your disk data.