Operating System not Found error when Card Reader installed (4321463)

Systems with card readers can cause issues when attempting to create partitions and format the hard drive.

Errors which might be observed are 'An operating system wasn't found' or 'no media present'.

The errors are cause when the card reader retains a drive label matching the drive letter that is called in the preinstall task.

To clear the card reader from being assigned any labels, create the below pre-installation task as the first pre-installation task in the deployment (place before partition, format and MBR tasks).

Library>Preinstallation Tasks>
Choose 'Add New Diskpart Script' from drop-down menu
Create title 'Clear Card Reader'
Paste the diskpart commands between the ========== brackets and Save.

=============
select vol 0
remove all noerr
select vol 1
remove all noerr
select vol 2
remove all noerr
select vol 3
remove all noerr
select vol 4
remove all noerr
select vol 5
remove all noerr
select vol 6
remove all noerr
select vol 7
remove all noerr
select vol 8
remove all noerr
select vol 9
remove all noerr
Exit
==============

Note:

The number of select/remove commands should equal the number of slots in the card reader. If you continue to receive the errors, with the target system in the KBE access Recovery | Command Prompt and start the Diskpart utility (diskpart then press enter key). Enter the command "list volume" to see what partitions remain with a drive letter assigned. Adjust the number of commands in the script till there are no assigned letters when completing the list volume command. Once this task is run with the matching commands the diskpart commands for partitioning, formatting and MBR will successfully complete.