Support and discussion for all of Akai’s modern standalone MPCs including the MPC X / X SE, MPC Live 1, 2 & 3, MPC One / One+, MPC Key 37/61.
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By NearTao Tue Jul 07, 2026 10:59 am
ontherun wrote:Don't do that, it's a path to hell


Quoted for truth...

Does it make sense? No... but the best advice over the last decade to keep the modern MPCs functioning properly has has been... don't delete things off of internal storage... and use an sd card, usb, or internal drive to save to.

Now, if you're an industrious person and still want to do this... by all means take the time to learn how to do it, but if you get things twisted you're probably going to need Akai's help to get it fixed :/
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By Lampdog Tue Jul 07, 2026 1:00 pm
flonky wrote:Hi, I want to delete the Demo Projects from the internal memory of my new MPC Key 37 Gen 2.
When I locate them in the browser, hold shift and press Delete File the file reamains in the browser.
Why?

ontherun wrote:Don't do that, it's a path to hell

Don’t do that, it’s a path to he’ll.

There is a file/folder structure that the new OS’s rely on, leave it intact, this aint the mpc’s of old, ignore your primal urges, move on.
By BackOnDaMPC Tue Jul 07, 2026 4:19 pm
flonky wrote:I don't want to destruct the file/folder structure, but just I don't need the Demo Projects (that take away internal space)...

Anything can happen by mistake, which is why the people in this thread keep warning you about the dangers of F'n around with the internal files. Proceed with caution.
By dustyslices Tue Jul 07, 2026 4:52 pm
seems that this directory was deliberately locked after a small expansions update been performed at some point. There is a 220mb in size Demo/Synths/Expansions update in each firmware (a bunch of .wav files, .xty presets and other stuff) called... "acvg-nvme-update-image.tar" which being decompressed with "acvg-nvme-update.sh" script.Long story short - the script check the device for ACVC or ACVG product code, sets the version (version_to_be_installed=7) of the update payload check the version of your content and if lower then remount the drive as writeable, update mising/broken pieces of factory content and lock the drive at the end and exits with "trap remount_readonly EXIT".
here are some comments from the script i think I can share:

# This expansion has been given a different set of samples - delete its TrackData
# to make sure none of the old ones remain.
$MOUNTPOINT/"Expansions/F9 Gemini - Future Classic Synths/Inst-Synth-F9 XE Armada 115_[TrackData]/"

# This expansion had a typo in the name. Here we delete it - the correctly-named
# version will be installed via the tarball.
$MOUNTPOINT/"Expansions/F9 Orion - Classic Workstations/INst-Piano-F9 Europa Piano 120.xty"

# The signed-off OPx-4 content had a misspelt version of this preset, which has
# since been corrected. Here we delete the correctly-spelt version of the plugin,
# as the tarball contains the original incorrectly-spelt version.
$MOUNTPOINT/"Synths/AIR Music Technology - MPC - OPx-4/Presets/0376-Plucks-Harmonic Chime.xpl"
# Write version file so that we don't install anything on next boot.

As you can see, sometimes they doing some updates in the background so they don't want any random Chad or Jerry to f**ck around in the filesystem.
By B-Wise Tue Jul 07, 2026 7:45 pm
flonky wrote:Hi, I want to delete the Demo Projects from the internal memory of my new MPC Key 37 Gen 2.
When I locate them in the browser, hold shift and press Delete File the file reamains in the browser.
Why?

Leave the factory file the hell alone. Don't save shit there either. Most definitely dont delete those unnecessary, but vital to firmware demo, files.