This article explains how to resolve a problem, when Windows does not boot and snapman.sys is mentioned on the blue screen (BSOD), after an attempt to uninstall or force remove Acronis software.


BSOD during computer bootup related to snapman.sys after removal of Acronis software. Windows does not boot in normal or safe mode.


With release of Windows 8 and Windows Server 2012 the new format of Hyper-V is introduced. It is named Hyper-V 3.

  1. You have prepared a virtual machine in Hyper-V 3 format;
  2. You want to run a deployment task to this machine and you are using the PXE boot method;
  3. During the boot of the virtual machine via PXE you encounter a very slow boot operation.


This is an issue in product.


To work around this issue, use boot ISO file attached to the virtual machine.


Windows 8 および Windows Server 2012 の公開とともに、Hyper-V の新しい形式である Hyper-V 3 が使用されるようになりました。

  1. Hyper-V 3 形式の仮想コンピュータを用意しました。
  2. このコンピュータに対してデプロイ タスクを実行したいと思い、PXE から起動します。
  3. この仮想コンピュータの PXE からの起動のスピードはとても遅いです。




問題を回避するために、この仮想コンピュータに接続されている起動可能な ISO ファイルを使用してください。


  1. You have an HP computer in UEFI mode
  2. You try to restore a system backup or perform a different operation with Acronis True Image that requires reboot
  3. After reboot, the system boots directly to Windows. Acronis True Image does not start in boot mode and the recovery/other operation is not performed


HP computers in UEFI mode use a specific boot order that overrides Acronis Loader.


As a workaround, change the boot order manually:

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

Acronis Startup Recovery Manager was not activated or used.


If your Mac includes the Apple T2 chip then you need to modify Secure Boot settings in order to boot from Acronis Bootable Rescue Media and/or Acronis Survival Kit.


Secure Boot settings are available in Startup Security Utility:

You can restore Windows Boot Loader manually using Windows utilities

Additional parameters that can be applied prior to booting Linux kernel