How To Convert Windows PC With UEFI Boot Mode To CSM Boot Mode & GPT Partitions In Minutes

Making the transition from UEFI boot mode to CSM boot mode and from MBR partitioning to GPT partitioning can be a daunting task. But with the right tools, you can make this transition quickly and easily. In this article, we’ll explain how to convert your Windows PC with UEFI boot mode and MBR partitions in minutes!

What is UEFI Boot Mode and MBR Partitioning?

UEFI stands for Unified Extensible Firmware Interface. It is a type of firmware used to perform hardware initialization during the boot process. UEFI is an evolution of the legacy BIOS system and provides more advanced features than BIOS.

One of the key features of UEFI is its support for booting from devices with large capacity, such as hard drives and solid-state drives (SSDs). UEFI also supports network adapters, USB devices, and other peripherals.

Another important feature of UEFI is its ability to boot in both 32-bit and 64-bit mode. This allows you to install and run both 32-bit and 64-bit operating systems on the same computer.

In order to take advantage of all the features offered by UEFI, your computer’s system partition must be formatted using the GUID Partition Table (GPT) instead of the older Master Boot Record (MBR) partition table.

Converting your Windows PC from MBR to GPT partitioning is a simple process that can be done in minutes. Here’s how:

1. Backup your data: Before you begin, it’s always a good idea to backup your data just in case something goes wrong during the conversion process.

2. Use diskpart tool: The diskpart tool is a command-line utility that can be used to create, delete, format, and convert partitions on your hard drive or SSD.

3. Convert MB

What are the Benefits of CSM Boot Mode & GPT Partitions?

There are many benefits of CSM boot mode and GPT partitions. CSM (Compatibility Support Module) is a legacy boot mode that is still present on many modern PCs. It allows you to boot older operating systems that do not support UEFI (Unified Extensible Firmware Interface). GPT (GUID Partition Table) is a newer standard that is slowly replacing MBR (Master Boot Record). GPT supports larger disk sizes and more partition types than MBR.

CSM boot mode has a few advantages over UEFI boot mode. First, it is compatible with a wider range of operating systems. This means that you can dual-boot between Windows and Linux without any issues. Second, CSM boot mode is faster than UEFI boot mode on older computers. This is because UEFI requires more processing power to initialize the hardware before it can start the operating system. Finally, CSM boot mode uses less disk space than UEFI boot mode because it does not require an EFI System Partition (ESP).

GPT partitions have a few advantages over MBR partitions. First, GPT supports drives with capacities greater than 2TB. Second, GPT supports up to 128 partitions on a single drive. This can be useful if you want to partition your hard drive for different purposes (e.g., one partition for your operating system and another for your personal files). Third, GPT is more resistant to corruption than MBR due to its

How to Convert Windows PC with UEFI Boot Mode to CSM Boot Mode & GPT Partitions

If you have a Windows PC with UEFI boot mode enabled and you want to convert it to CSM boot mode with GPT partitions, follow the instructions below.

1. Boot into your computer’s BIOS settings. This can usually be done by pressing a key during startup, such as F2, Del, or Esc.

2. Locate the boot mode settings and change it from UEFI to CSM. This is usually found in the ‘Boot’ or ‘Security’ tab of the BIOS settings.

3. Save your changes and exit the BIOS settings. Your computer will now boot in CSM mode.

4. Open the Disk Management tool by pressing Windows Key + R, typing diskmgmt.msc, and hitting Enter.

5. Right-click on each partition on your hard drive and select ‘Delete Volume.’ This will delete all of your current partitions and allow you to create new ones.

6 .Create a new partition for your Windows installation by right-clicking in the unallocated space and selecting ‘New Simple Volume.’ Follow the wizard to create a new primary partition using all of the available space on your hard drive. Make sure to format the partition as NTFS before continuing. 7 Exit the Disk Management tool and proceed with installing Windows onto your newly created partition

Step by Step Guide for Conversion

If you have a Windows 10/8.1 PC with UEFI boot mode and GPT partitions, you can convert it to CSM boot mode and MBR partitions with the following steps:

1. Back up your data. This process will delete all of the data on your PC, so it’s important to back up any files you want to keep before starting.

2. Boot into your BIOS settings. This is usually done by pressing a key during startup, such as F2 or F12.

3. Find the UEFI settings and disable them. This will vary depending on your BIOS, but typically you can find the UEFI settings under a ‘Boot’ or ‘Security’ tab.

4. Save your changes and exit the BIOS. Your computer will now boot in CSM mode using MBR partitions instead of UEFI mode with GPT partitions.

Troubleshooting Tips for Common Issues Encountered During the Process

If you’re having trouble converting your Windows PC with UEFI boot mode to CSM boot mode, there are a few troubleshooting tips that might help. First, make sure that you’re using the latest version of the Windows operating system. If you’re not, try upgrading and then retrying the conversion process.

If that doesn’t work, try disabling any security features that might be blocking the conversion process. This includes things like antivirus software and firewall protection. Once you’ve done that, try restarting your computer and then retrying the conversion process.

Finally, if all else fails, you can always contact Microsoft support for help. They should be able to provide you with further troubleshooting tips or even walk you through the process if need be.


We hope that our guide on how to convert Windows PC with UEFI boot mode to CSM boot mode and GPT partitions has been useful in helping you set up your system. Although it can be difficult and confusing at first, following this tutorial should make the process of setting up a dual-boot environment much easier. If you’re still feeling stuck or confused, don’t hesitate to reach out for help! With the right approach and guidance, your computer will be ready to go in no time.