Is there a way to enable the 'Previous' button in the WinPE environment.
So after pressing F12 twice and filling in the password, you can select between the advertised Task Sequences.
In our 2007 R3 environment, when an error occurred because of missing packages on distribution points for example we could go back by pressing previous, update the distribution point and let the evaluation reoccur.
In 2012 R2, the previous button is disabled causing to restart the pxe sequence completely in case of issues.