The Easiest Way to Restore BIOS to UEFI without Reinstalling

Want to restore BIOS based backup to UEFI computer? Follow this guide to learn how to make it step by step, no need to reinstall everything.

By @Delia Last Updated October 25, 2024

When it comes to upgrading from a BIOS based system to a UEFI setup, you might be wondering how to access your previous recovery points in Windows 11/10/8.1/8/7. Fortunately, you don’t need to go through the hassle of reinstalling your operating system or applications. In this guide, we’ll introduce you to the easiest way and walk you through the steps to effectively restore your recovery points, ensuring your system remains stable and your data stays safe.

The Easiest way to restore computer with UEFI from a BIOS based backup

As the most powerful backup tool, AOMEI Backupper Professional is specialized backup software designed for Windows 11/10/8.1/8/7 that can easily restore system from MBR disk to GPT disk and vice versa while ensuring that the destination disk receiving the backup remains bootable. It is convenient because you don’t have to convert the partition style or change boot mode. 

What’s more, you can keep the benefits of UEFI, such as faster boot, Secure Boot, and multicast deployment. Before you start the restore, make sure your system is supported in a UEFI boot computer.

To restore BIOS based system backup to UEFI computer:

1. Download AOMEI Backupper, and use it to create a system backup and a bootable rescue bootable media.

AOMEI Backupper

Easiest Windows backup and restore software for personal use.

2. Use the bootable media to boot the UEFI computer. In the meantime, make sure the system backup you created is accessible to the target computer. Click Restore > Select Image File.

3. Click to select the image backup file. You can add network location (NAS or shared path) first when necessary.

4. Select a partition to receive the backup. Note that all the data on the selected partition will be deleted when the restore begins.

5. Make sure the Universal Restore option is checked, and click Start Restore to begin the restore.

Regular way to restore BIOS based backup to a UEFI computer

However, if your UEFI based computer is able to boot into legacy mode, you can follow the steps below to restore or move Windows installation from BIOS to UEFI computer.

1. Create a bare metal backup of the BIOS based computer, and prepare a Windows installation disc or recovery drive.

2. Convert GPT disk to MBR disk.

3. Enable Legacy boot mode. You can consult the manufacturer’s support about how to boot the system into a legacy mode.

4. Insert an installation disc or recovery drive to perform a bare metal system restore.

This will successfully move Windows installation to another computer, but you will lose the advantages of UEFI boot and GPT disk. The destination disk space beyond 2TB will become unusable. If you think this method is too cumbersome or you don’t want to give up the benefits of UEFI, you'd better try AOMEI Backupper.

With AOMEI Backupper, you don’t have to restore BIOS based system recovery points to UEFI based computer to move system to another computer with different firmware, because you can also use System Clone. What's more, AOMEI Backupper allows you to create a recovery environment in which you can perform backup and restore operations without loading Windows.

Further Reading: About UEFI and BIOS

Unified Extensible Firmware Interface (UEFI) mode and BIOS based Legacy mode are two different firmware that computers now use. By default, recent hardware boot using Unified Extensible Firmware Interface (UEFI) mode, which will prevent BIOS based system being installed.

Using UEFI mode, the system must be installed on a disk with GUID partition table (GPT) partition style, while in BIOS the master boot record (MBR) partition style is required. For those who want to restore system to another computer besides the original computer being backed up, these two boot modes must not be mixed.

Well, some UEFI based PCs has the ability to run Windows in legacy BIOS-compatibility mode, which makes it possible to restore BIOS based system recovery points to UEFI based computer.

FAQs about restore BIOS to UEFI

1. What are the main benefits of using UEFI over BIOS?
 
UEFI offers several advantages, including faster boot times, support for larger hard drives (over 2TB), enhanced security features like Secure Boot, and a more user-friendly graphical interface for system settings.
2. Can I restore my BIOS system backup to a UEFI computer without losing data?
 
Yes, using AOMEI Backupper, you can restore your BIOS system backup to a UEFI computer without losing data, provided you follow the correct restoration process outlined in the software.
3. What should I do if my UEFI computer doesn’t support legacy mode?
 
If your UEFI computer does not support legacy mode, you should use tools like AOMEI Backupper that allow for direct restoration from BIOS-based backups to UEFI setups without needing to switch modes.
4. Is it necessary to convert my disk from MBR to GPT for UEFI?
 
Yes, for a UEFI system to boot properly, the disk must be formatted with a GUID Partition Table (GPT). AOMEI Backupper can handle this conversion seamlessly during the restoration process.
5. What happens if I try to restore a BIOS backup to a UEFI system without proper tools?
 
Attempting to restore a BIOS backup to a UEFI system without the appropriate tools may lead to boot issues or data loss, as the system architecture and partition styles are incompatible. Using specialized software like AOMEI Backupper helps avoid these complications.

Conclusion

Restoring a BIOS-based system to a UEFI setup doesn’t have to be a daunting task. By utilizing AOMEI Backupper Professional, users can easily restore their recovery points without the need for complex procedures or sacrificing the advantages that come with UEFI. This powerful backup tool not only simplifies the restoration process but also ensures that your system remains bootable and your data intact. Whether you're looking to maintain system stability or to leverage faster boot times and enhanced security features, AOMEI Backupper offers a straightforward solution. Why Wait? Download to restore BIOS to UEFI for Windows 11/10/8.1/8/7 now!