Thursday 6 February 2020

Secure Boot of large Windows Install ISOs with agFM

If your Windows Install ISO is very large and contains a 4GB+ install.wim or install.esd file, then you can still Secure Boot to the agFM then boot from an NTFS partition.

1. Make a .imgPTN23 NTFS image file using the MPI Tool Kit (drag-and-drop onto the MPI_NTFS Desktop icon).
2. Copy it to your E2B NTFS partition.
3. Copy agFM_imgPTN_NTFS_v16.cfg to your E2B NTFS partition (e.g. \agFM folder).
4. Change the name of the .cfg file to whatever you like (keep .cfg extension).
5. Edit the .cfg file to set the file path of your image file and its image type.

Now you can switch in the NTFS image file, reboot and use the F3 menu to boot to (hd0,msdos1).

Note: Later versions fix a few bugs and allow us to simply select the .imgPTN23 file so that a .cfg file is not needed.

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