BatUtil/PSFX_Repack

PSFX Repack

Info

• Some Windows 11/10 updates are available as a PSFX format

It consist of cab file that contain the update manifests, and psf file that contain the raw payload files

• There are two types of this format:

PSFX v2: delta update files which require WinSxS source files

Baseless PSFX: complete update files which have no dependencies

• To use those files with DISM /Add-Package command, it is required to extract (generate) the actual payload files first

Afterward, you can use the extracted folder path with DISM, or compress the folder into a full cab file or esd file

• The provided scripts automate the process and repackage the psf/cab files into full file

Usage

• Extract this package zip file to a folder with a simple path

• Copy or move the psf/cab files next to the script, then run one of the scripts:

psfx2cab_CLI.cmd
use cabarc.exe to create the full cab file / no progress info shown

psfx2cab_GUI.cmd
use DXTool.exe to create the full cab file / show GUI progress info

psfx2esd_CLI.cmd
use imagex.exe to create the full esd file / show percentage progress info

• Or from command prompt, run the desired script and provide path to the folder containing psf/cab files

example:
psfx2cab_CLI.cmd E:\Downloads\uup-converter\UUPs

• The result file will be located in the same folder (current or provided)
  and it will have the same name of the original cab file, appended with -full_psfx

example:
windows10.0-kb5004564-arm64-full_psfx.cab

Remarks

• The script do not require administrator privileges
  however, if you get Access Denied errors, run it as administrator

• CAB file has limitation by design: 2 GB size - 65535 included files/directories

if you are repacking big baseless update, it's recomended to create esd file instead

• psfx2esd_CLI.cmd is set to create the full esd file with max-compression ratio

if you want to create the file with solid high-compression ratio (require high amount of CPU/RAM),
edit the script and uncomment this line:
set compress=LZMS

Credits

• PSFExtractor / th1r5bvn23
• OnePiece / DXTool
• Melinda Bellemore / SxSExpand