This article explains how to find out whether Acronis Bootable Media boots in UEFI or Legacy BIOS mode. Keep in mind that bootable media should boot in the same mode as your system to correctly perform restore or clone operation.
The mode your system boots in is shown during the initial machine boot:
In Windows 8 and 10, you can also check the boot mode using System Information:
1) Press Win+R, type msinfo32 and press Enter to open System Information
2) Look for the BIOS Mode entry. If your computer uses BIOS, it will display Legacy. If it is using UEFI, it will display UEFI.
WinRE/WinPE-based media (default)
1. WinRE/WinPE-based media (default)
If you chose the second option in the Rescue Media Builder wizard, "WinPE-based media with Acronis Plug-In", discovering whether it is started in UEFI mode or Legacy BIOS/CSM is different.
Booting WinPE-based media looks identical in both UEFI and Legacy BIOS modes. The difference could be told only by looking up in the registry after Acronis True Image main window appears (steps 6 and 7 in the table below). Click here to skip to the instructions part.
2. Linux-based Bootable Media
The table below illustrates the booting process of the Linux-based Bootable Media. You have this type of media if you have chosen the first option, "Acronis Bootable Media", in the Rescue Media Builder.
By simply looking at how the media starts up, you can tell whether it is booting in UEFI mode or Legacy BIOS/CSM.
|Booting stage||UEFI boot mode||Legacy BIOS/CSM boot mode|
|1. Acronis Loader initializes||"Starting ... UEFI Loader" is displayed
||"Starting Acronis Loader" is displayed
|2. Acronis Loader boot menu||Black-and-white boot menu
||Colorful boot menu
|3. Acronis Linux environment starts up||"Please wait ..." text appears
||Logo and patents
|4. Acronis True Image Linux application starts up||"Loading, please wait..." is displayed
|5. Acronis True Image is ready for use||Acronis True Image window