1. BIOS -> MBR

Bios POST passes boot process to the first bootable drive according to device boot order settings. Possible error messages during this stage:

• Boot device not found
• No bootable device available
• Operating system not found

2. MBR -> OS loader

Next stage is MBR. It contains bootable code and partition table. Latter one refers to the active partition. Possible error messages on this stage:

• BSOD 0x7B
• Bootmgr is missing (or NTLDR is missing)

3. OS loader -> login screen

First 16 sectors on an active partition contain OS loader. On this stage Winload.exe loads kernel and then Windows drivers according to their order. On this stage you will see Windows BSOD or Windows error messages before login. 

Possible reasons and solutions:

• Microsoft sysprep used before taking the archive image.
• Filesystem is corrupted in the image. This issue may be detected either by sector-by-sector mode forced by Acronis product (you can see that in the logs) or by performing checkdisk on system partition (you may mount image in read\write mode to do that).
• Check if BCDEdit output is correct by using bcdedit /enum command on the source system. If output contains error, you should fix boot configuration datastore problems. If you have Windows edition before Vista then check if boot.ini file is present.

If these solutions are not applicable or did not resolve the issue, please navigate to the Collect information section.

In this section, we will analyze most recent cases for error messages in the log, which are located after “Starting Acronis Universal restore” message. If error message is before “Starting Acronis Universal restore” then please troubleshoot the issue according to Acronis Backup: Troubleshooting Recovery Failures or Acronis True Image: Recovery Fails.

Possible error messages:

File “restore_aw_assistant” cannot be found

• Ensure that you have latest version of drivers.
• It also may be related to scenario when archive image is a result of previous recovery with AUR and was taken without booting into OS.

An error messages related to drivers installation

• Necessary drivers should be available. Check whether you have the necessary driver, see this article for help.
• Drivers folder should be accessible from bootable media.
• Try to place all drivers in one folder without subfolders.
• You can also use InfVerif from Microsoft to verify drivers.
• The most reliable way is to install clean OS of the same edition on the target machine using these drivers.

If these solutions are not applicable or did not resolve the issue, please navigate to the Collect information section.

Let’s review possible cases depending on the stage of failure:

1. BIOS POST -> MBR

Possible error messages during this stage:

• Boot device not found
• No bootable device available
• Operating system not found

Solutions:

• Check boot order in BIOS
• Check disk report using "Disk report analysis section"

2 MBR -> OS loader

Most common failure on this stage is BSOD 0x000007B. For some reason bootable partition can't be mounted.

Solutions:

• If recovery log contains any errors please refer to “Recovery fails with error message” section.
• Check disk report using “Disk report analysis” section.
• Most common scenario is related to conflict of drivers from old system with new one. In this case you should capture “System” registry hive using Capturing Windows Registry KB article.
• Make sure installation of new devices is not prohibited in the system, see KB article BSoD after Restore to New Hardware with "Stop 0x0000007B" Due to Restricted Installation of Devices.

3 OS loader -> Win Logon

BSOD 0x7E
Try to update BIOS on the target machine.  

BSOD 0x50, 
See Microsoft article Troubleshooting blue screen errors.

BSOD 0xED
See Microsoft article Troubleshooting blue screen errors.
Also check if RAID device on a target machine is recognized properly per Acronis Bootable Media: Troubleshooting HDD or RAID Detection Issues.

0xc0000225 stop error
One of the possible scenarios is recovery from UEFI-based machine to MBR-based. As a workaround you can set UEFI mode on target machine.

If these solutions are not applicable or did not resolve the issue, please navigate to the Collect information section.

1. Check if OS can be boot in Safe mode (Press and hold F8 key as your computer restarts, on the Advanced Boot Options screen choose safe mode option). Collect Acronis Information from Windows if boot in Safe Mode succeeded.
2. Collect information listed below and contact Acronis Customer Central.