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Message: [QUOTE="Queen, post: 90451, member: 27"] Kontakt's purge system works by flagging every sample the moment you actually play it, so once you have run a project from top to bottom, the sampler knows exactly which round robins, articulations and velocity layers your arrangement touched, and it can dump everything else out of RAM, which is why a session that felt impossible to open will suddenly load and play without you deleting a single instrument or changing one note. Native Instruments documents four options for this. The order you use them in decides whether it saves your session or quietly breaks it. The flags are the whole trick. Kontakt marks a sample as used the instant it sounds, so an instrument you never triggered still counts as untouched no matter how many notes sit in the piano roll. Play the arrangement through once, and the sampler builds an honest picture of what your music actually needs. Four gigabytes of RAM is the official minimum for Kontakt 8, with six recommended. That tells you how little of the load the sampler itself carries. The rest is your libraries, and purging is the only free way to claw it back. [HEADING=2]Reset markers before you touch the sample pool[/HEADING] Reset markers wipes every usage flag Kontakt has collected. It sounds destructive, and it is actually the safe starting point, because stale flags from an arrangement you have since rewritten will keep dead samples alive. Do it first, then play. The pass itself needs to be honest. Solo nothing, mute nothing, and let the transport run the full arrangement including the tail, because a sample that only appears in the last eight bars gets thrown away if you stop early. Tempo changes and key switches count too. Update sample pool does the real work. It removes everything unflagged and reloads any currently purged samples that have been triggered since, so it doubles as a repair tool when notes go missing mid-session. Run it after one full pass, and watch the memory figure fall. Purge all samples unloads the lot and leaves you with a silent playthrough, which is the cleanest way to rebuild the flag list from nothing. Reload all samples reverses everything if you got trigger-happy. Both sit in the same menu, one click apart, which is exactly how people wreck a take. [HEADING=2]Purge is a chore Kontakt still refuses to automate[/HEADING] Kontakt gives you no documented way to load instruments already purged, so the flagging pass is a job you repeat rather than a setting you save. People have been asking for a purged load option across several versions. It has not arrived. Run Kontakt as a plugin, and the global options change shape, giving you a choice between purging the current instance and hitting every instance at once. In a template spread across dozens of slots, that difference decides whether you are done in one move or clicking through slots for the rest of the hour. You will also waste an afternoon [B]hunting for a purge shortcut that was never built[/B], because there is still no key command for purging or resetting markers. Users have been asking since Kontakt 5, and Native Instruments has logged it as a feature request rather than shipping it. [HEADING=2]Classic View still hides the controls you need[/HEADING] The purge menu lives in the Classic View instrument header alongside MIDI input and audio output, which is not where most people look first in 2026. Native Instruments has been rebuilding the interface in stages, and [B][URL='https://goldmidi.com/community/threads/native-instruments-gives-kontakt-8-12-a-header-overhaul.75867/']the unfinished header shake-up in Kontakt 8.12[/URL][/B] pushes those three controls into a later phase due in 8.13 or 8.14. Until then, Classic View is not optional. macOS users get one more lever in the Kontakt Memory Server, which holds samples outside a single instance. Native Instruments is blunt that you should only switch it on for collections too large for one instance to address. For everyone else, it adds a failure point for no gain. [/QUOTE]

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