Very helpful answers, thank you!
Yes I have a AMD TR 3960X 24 Core CPU which seems to have too much cores.
A 24/24 Cores seems to work here.
I have an AMD EPYC 9654 96 Core CPU and crash at 87%-90%. Now I only use 2 CCDs of 12 CCDS (so I have 16 cores 32 threads), the game still stuck at 90% but not crash. My GPU is intel Arc A770.
edit: when I use a770 with 16 thread epyc, I still cannot enter the game. But after I change the gpu to 2080ti, I successfully entered the game.
edit 2: switch to compatibility mode and a770 works
I guess that if it doesnât crash the problem lies elsewhere. But who knows. Would you mind to turn hyperthreading/SMT off and see if that changes anything?
32 cores is max. Can confirm support is well aware and should hopefully be patched soon.
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Hi, I have an x99 board with Xeon 2678 v3 with 64gb of ram and when I start msfs2024 the loading screen is at 89-90% and it sends me to the desktop. Iâm quite desperate since I never had problems in fs2020 in 4 years, so if someone can clarify something, Iâve already disabled the superthread in the bios, and after wasting two days updating everything possible Iâm still stuck. Greetings.
I wouldnât call that issue solved until the bug is fixed⊠Throwing away huge amounts of available compute power just to get that piece of shoftware running is no solution⊠It could maybe called a workaround, but for me it is more a testing/debugging/confirmation procedure.
Not Solved But Explained Crashes due to POOR Testing.
Threadripper PRO 7965WX 24-Cores will not run unless I kill 14 cores and Limit the system to 20 threads MAX.
Asobo= POTATO Developer. Worst Game Launch in PC History.
Wear your Mark Of Shame Forever.
Steam gave me the %100 fix
Itâs a shame because multiple of us TR users in the Tech Alpha reported this, and identified the issue being TR/high core counts.
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Donât mess with your BIOS. You can make the changes easily through windows.
- type msconfig in search window and run it
- click on boot tab
- click on advanced settings
- click on box by number of processors, choose 32 (or less)
- apply and restart your computer and your gtg
- remember, when Asobo fixes this, you need to change it back. simply click the box again and reboot. It will default back to your default processors.
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It is quite clear now that Asobo/MS rushed this out the door. Every alpha tester with more than 32 cores obviously had this problem (both intel and AMD), yet Asobo ignored a show-stoppping bug. Not to mention the marketplace not working and other issues.
Correct, I changed the title to Workaround:âŠ
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Jeeeeese! After trying absolutely everything, I thought it must be CPU related and then thankfully found this post.
If this was reported in the open dev release then thatâs disappointing that they didnât fix it for the public release. Probably affects a small number of players but still, we have paid for the game and canât play it. People with these sorts of systems are possibly the people more likely to buy the more expensive versions of MSFS 2024 too.
Finally in the game for the first time! (After halving my cores!)
Itâs also somewhat ironic that one of the big things that MS highlighted with 2024 versus 2020 is that itâs more multithreaded! 
Tried it - does not change anythingâŠ
i5-13600KF 20 Cores (cut in half)
Yes, but admittedly multithreading is a real programming nightmare. Utterly complex, hard to debug & test for each situation and not always the most performant solution once youâve implemented it.
So donât be upset, they will fix it amongst the last remaining few billion bugs.
Yes, I absolutely agree that multithreading can be tricky, but itâs also very old tech at this point. It sounds like they have mastered the multithreading because the game utilizes a lot of cores, this is probably a small bug rather than an overhaul.
Itâs more so that they already had reports that it simply didnât work for people with a lot of cores / Threadripper and didnât inform users buying the game. Even the FAQ link I was sent when I logged a support ticket doesnât work.
If you bought a new car and they knew that the engine didnât work and they werenât sure when they were going to fix it but decided to deliver it to you anyway, Iâm pretty sure you would be upset. Even if 99.9% of other cars delivered to other people worked fine.
And as you say there will be hundreds (probably) thousands of bugs for them to fix, but donât sell something to someone that doesnât work at all for that person, thatâs why they advertise minimum specs.
There is a workaround so itâs not the end of the world and itâs a luxury to still have 32 working cores, but that isnât the point really.
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I can confirm that reducing the number of cores from max worked. I have an I9 10980XE with 36 cores. Reduced to 32 and MSFS 2024 made it through the setup. I have flown and owned all flight sims since FS1. Reducing computing power was never a solution 
I assume there is an issue with the code handling hyperthreading that needs to be addressed. Reducing cores affects the rest of the hundreds of programs on the PC. Hope Asobo addresses soon. But at least we are in.
I have the same issue with an AMD Ryzen Threadripper 7970X 32-Cores. I cut him off half of his resources and it works.
What shocks me a lot is that this software was released with such a problem. They knew but I guess the happy owners of processors with more than 16 cores donât weigh enough financially.
Same issue here, TR 3960X 24 Cores (48), 128 GB RAM, 3090 RTX crash at ~87-90% 
Reduced an i7 13700KF to 16 processors, still the same result. Crashing/freezing at 87-90% every single time.
FYI newest patch does NOT fix this issue.