Acronis Snap Deploy 4 supports UEFI-based systems starting from Update 1

Acronis PXE Server support for UEFI machines is planned for future


Almost all modern computers have UEFI (Unified Extensible Firmware Interface) firmware implementations, some of them also including legacy support for BIOS services. UEFI firmware could be either 32 or 64-bit. Not all Acronis programs support both 32- and 64-bit versions of UEFI. See https://kb.acronis.com/content/43091 for 32-bit UEFI devices support limitation.


1. You create a master image of a UEFI machine

2. You start to deploy this image to the same machine via a deployment task from OS Deploy Server

3. OS Deploy Server logs contain the following error:

Internal error: write outside of allowed area


Issue in the product

When you turn on the computer, Acronis bootable environment starts up unexpectedly instead of Windows.

Acronis Startup Recovery Manager was not activated or used.

When performing troubleshooting you might need to know whether Acronis Bootable media is booted in UEFI or legacy BIOS modes.

Method 1. If you can see bootable media Loading, then pay attention to its initial screen:


  1. You create Linux-based Acronis Bootable media or download ISO image from Account or upload bootable components to Acronis PXE Server
  2. When trying to boot the target machine from this media, you see the following message:

    Video mode setup error: Error 0x1480006: The video framebuffer parameters are invalid


Known issue with Acronis UEFI loader.

This article describes how to change the delay time and key for starting Acronis Startup Recovery Manager.