The full version of Acronis Bootable Rescue Media uses Linux environment, the naming convention of which is different from Windows

Symptoms

1. You boot from Linux-based Acronis Bootable Rescue Media (full version);
2. The partition and drive letters are different from the ones displayed in Windows.

Cause

The full version of Acronis Bootable Rescue Media uses Linux environment. This results in the default Linux letter assignment rules, which may be different from the ones in Windows.

Solution

Try identifying the drive or partition you need by size or label.

For example

Acronis Bootable Media	Windows

(!) If you have a USB drive, it is recommended to plug it in after booting from Acronis Bootable Media, so that it does not receive the drive letter of your system partition.

More information

This is a standard behavior. It does not mean that the drive letters in Windows have been changed.

See also Chapter 2.1.1 Naming Convention at http://www.ibiblio.org/pub/Linux/docs/HOWTO/other-formats/pdf/Partition.pdf