Traktor Pro 3 and Maschine 2 Won't Launch

Context

In regards to your question for more context, yes Traktor 3.9.0 was working previous to this issue working. I had been preparing a crate for a set and had saved my collection, then closed traktor, and then restarted my PC using the restart button in the windows menu.

I do not have a 2nd PC to dedicate exclusively to A/V software, this is my general use PC hence why I have things like steam installed.

After restarting my PC, that's when this issue began and I was unable to start traktor or maschine after that point, native access and the controller editor launched fine though.

I immediately began trying all the options for fixing the issue I could find in support articles, I first tried removing only the settings file, or only my collection file, then both, but traktor never got to the point where it would repopulate either of them.

I noticed when traktor started up, it would show up as a task in task manager but wouldn't start, and I also couldn't launch another instance of traktor because technically one was already running, so I would shut it down from task manager.

I also saw in the log those 4 lines from my initial post here indicating to me that traktor never successfully launched.

After deleting my settings file and collection did not work, I tried deleting the USER entry for traktor as outlined in the support article titled "My NI Software Crashes at Startup (Windows)" (I would link it, but I can't post links because my account is too new)

That didn't work, so next I tried uninstalling traktor, rebooting, and reinstalling. That didn't work either and at this point I had already tried every other step I could find in NI's support articles, so my next step was to clean out everything related to NI software possible to ensure I was doing a clean install of everything.

To do this I took these steps;

• I uninstalled every piece of NI software using their uninstaller
• I deleted the contents of Documents/Native Instruments (I backed up my traktor folders as I did not want to lose my collection files)
• I deleted both the Appdata Roaming and Local Native Instruments folders as well as the Native Access 2 folder
• I deleted the Program Files/Native Instruments folder
• I deleted all of the USER registry entries for Native Instruments
• I then restarted my pc and then installed Native Access 2 and Traktor Pro 3

I did not use the NI regtool at the time, as it wasn't covered in the support articles I was able to find and I only saw the recommendation to use regedit to remove the entries.

I had opened a ticket with NI support and at one point they had recommended I use the NI regtool to remove traktor, but it didn't have any different effect from me manually removing the entries with regedit.

I unfortunately do not have a system restore point from before the issue occurred, that was one of the first things I had tried to do when I ran into the issue, I don't know why but system restores were not enabled at the time on my PC.

You mentioned that a windows reinstall is not a solution to solve third party software issues is generally not the solution, but this was the recommendation I was given by NI's support every time I've come to them with an issue related to their software having issues, hence why I spoke of a reinstall being my last option that I really didn't want to do, and also the reason I have reinstalled windows twice in the past to fix issues related to NI software.

I made a post here because I wasn't really getting much help from the NI support ticket, they generally weren't listening to the issue I explained, sent a lot of copy paste responses that did not match the context I explained to them, it generally didn't feel like I was making any progress and they also told me the final option was to reinstall windows like they had told me for the other issues I had in the past after not really going that in depth into narrowing down why the issue was happening.

At that point if I have to do reinstalls this frequently because of issues with their software, I'm much more inclined to sell all my NI hardware, as much as I like the hardware. I would much rather be able to figure out the problem and not have to do a reinstall.

Sorry for the long explanation, but that's the full context of how I arrived to this point, I've spent a solid several weeks at this point trying to fix this issue.

In regards to the services and scheduled tasks;

Here are screenshots of the relevant tabs;

PS:

In regards to what I NI software I currently have installed, I only have Native Access 2, Traktor Pro 3, the controller editor, and all the controller drivers Native Access automatically installs when I install Traktor

Unfortunately I had tried completely disabling both Malwarebytes and Windows Defender when NI support was giving me suggestions, but it had no effect on the issue either, however I have added an exclusion for Traktor now in both windows defender and malwarebytes to see if that helps.

My PC isn't really optimized around gaming, it is my general use computer, so I do play games on it but that's the extent of it.

I uninstalled all of the NI drivers except for the S4 MK3 and Maschine MK3 (though note, I did not intentionally install all of the drivers at once, this is just what Native Access does automatically)

Thank you for the insight on running services, I was aware of having too many startup tasks not being great for your system but hadn't really thought about what services were running before. I do have an M-Audio MIDI keyboard, however I'm not using it currently so I uninstalled the driver for it to help rule out more things. I also uninstalled some things that were in the services list that I haven't used in a very long time.

I also set all the services to manual outside of Malwarebytes, NI, and the NVidia DisplayContainerLocalSystem and ensured they were not running after a reboot, but unfortunately there's no change in the issue after doing this.