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drive letters change when image restore goes to dos

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My laptop has a micro sd card reader. so when in dos my usb drive changes letter and Acronis image file can't be found?

drive image 2019,Win 10, backing up C drive. image file is created fine on my usb drive (E:). When I go to restore  program can't find the image file.

Thanks for the replay


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I don't understand what you're doing?  When are you in DOS?  What are you doing - trying to backup the SD card or back something up to it?  Is this from Windows, or rescue media?  If rescue media, is it the default Linux media or WinPE/WinRE rescue media?  What version of backup software are you using?

Really hard to help without some information.



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Michael, assuming that when you say 'drive image 2019' you actually mean Acronis True Image 2019, then it sounds (to me) as if you are attempting a restore from the Windows ATI GUI, which in turn will require your computer to be restarted in to a temporary Linux based OS environment.

This is something that ATI allows users to do but which we would strongly advise against doing, as it can cause Windows to not be able to boot correctly if anything doesn't get reset correctly.  ATI modifies the Windows Boot Configuration Data (BCD) to do this type of restore, and the BCD is how Windows knows how to boot correctly.

The recommended method of doing any restore / recovery involving the Windows OS drive is by creating and using the Acronis Rescue Media.

See KB 61632: Acronis True Image 2019: how to create bootable media - for details of how to do this.

Note: drive letters shown in any of the rescue environments can be different to those shown when Windows is running - this has always been the case and is warned about in the documentation.

One key benefit of creating & using the bootable media is that the default method uses files from your Windows Recovery Environment (WinRE) which in turn should pick up device drivers to support the devices in your computer, such as your SD card reader (which the Linux environment may not have any support for).

One final comment, please always try to give your drives / partitions obvious names that describe their purpose - this will make life 100% easier for you when working with rescue media, as you will see those names shown even if the drive letters have changed, so you can easily identify the correct drive you want to use, and especially choose the correct drive to recover / restore to!

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Thanks for the help, now I understand.