Okay I have also posted my issue on the thread you suggested. Really seems something going on with the ryzen hardware… sad. Zwift was absolutely stable for me until now, pisses me off at the moment.
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Video capture is off, I have been in contact with zwift support before
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Video capture? I never had video capture on is that in the settings?
yes, in settings, set video screen shots to off
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Okay I just looked. I dont have that option in my settings. Maybe because I removed the AMD Ryzen drivers at some point in my troubleshooting. The default windows drivers might not allow zwift video recording…
I will play around a little more this evening now I know its not really my fault 
What’s in your PC? Suggestions for things to try will vary based on the hardware you are using. If Windows is crashing I’m skeptical that it’s the same issue as all the Ryzen laptop owners are experiencing.
If you have a CPU that ends in “U”, drop your log file in Zwiftalizer 2.0 and check framerate. If under 15 you might be crashing due to low framerate.
Ensure Onedrive is uninstalled.
Video/screenshot settings are in Zwift.
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Well that PC has been working for the past years without issues. It is good enough for Zwift according to the requirements on their pages. I have recently put it though a “stesstest” to see if it runs well alone… passed…
I can terminate the Zwift process if I am fast enough when I see the screen freezing. Then Windows carries on, if too slow then the screen is frozen and I cant to anything anymore. Windows doesnt BSOD it even runs the background music. I just have to terminate the computer to restart. It is NOT the background music either, zwift freezes also when nothing else is running.
Thanks. PC has been running well the past years. It meets the Zwift requirements, and does about 60+FPS. I have a Surface that doesnt crash that does just 30FPS.
I havent changed anything on the PC just updated Zwift to 1.78.
The Surface (that doesnt freeze zwift) has onedrive running, music in the background, discord… all sorts of rubbish…
The Ryzen PC is more powerful running naked just zwift but freezes and I dont even run maximum graphics resolution just 1080p. Video capture isnt offered.
If you’ve already updated the video driver with the one from the AMD website and it still fails, I think you’re stuck waiting for Zwift to fix it. I’m not aware of any other things to try.
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Yes, drivers have been updated, but also reset to Windows default drivers, same problem with both.
Zwift has been un- and reinstalled according to the procedure recommended on their homepage.
I completly reset and reinstalled Windows (11 24H2).
The PC has been stresstested and passed.
Somehow I have narrowed it down to Zwift and this PC (Ryzen). I can´t think of any other possibility.
Has anyone actually tried and been successful in having Zwift support respond on this issue?
Yes. This is the most recent update I’ve received.
“This is Rowdy at Zwift HQ again. Thank you so much for sharing this log file and this additional information. This really helps build on the investigation and should help provide a way for the engineering team to manually recreate this issue internally.
I have escalated all of this information to our engineers to be addressed as soon as possible. Please let me know if anything changes in the meantime and I will be happy to help further.”
I did ask if there was any additional information, such as an ETA on a fix, but did not receive a reply.
For anyone experiencing this issue on a Ryzen machine, watch your total RAM utilization in the task manager. Once it gets to around 90% you’re on borrowed time. Zwift will crash for me around the 93-95% mark consistently.
Things that don’t change this behavior:
- Driver updates
- OneNote
- Uninstalling/reinstalling Zwift
- Network connection (lol nice try, support)
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Due to the ongoing instability of Zwift, especially with AMD processors, I spent over an hour riding on MyWhoosh yesterday. It ran smoothly without any issues whatsoever. 
That said, I still hope Zwift finds a solution sooner rather than later—faster than MyWhoosh can close the gap to Zwift (if that’s even a possibility). 
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I had exactly the same issue on a brand new gaming PC purchased just to run Zwift on, was working just fine, ran the latest update then crashed between 45 mins - 2.5 hours every time…the PC was running an onboard AMD GPU and the spec was way above the requirement level. I purchased a new AMD GPU and installed it and thought it had worked, but sadly not the problem continued. In the end I bought an NVidea GPU that needed it’s own power source (i.e. I had to plug connectors from the PC’s power unit directly into the GPU) and this has fixed the issue instantly. Hopefully this will help other users who have the same issue as it seems to be happening more and more???
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I am sure this is a problem Zwift should solve. Seems they have some issue with their programming with certain hardware. Sad but we are either forced to buy new hardware or just hope that some new drivers “help” or Zwift finds what they are doing wrong…
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Unfortunately I have the same specs: Ryzen, 8gb ram,… and it crashes aroudn 1.5 hours for me. Just started happening though. Very frustrating as the rides are lost. I have updated drivers, reinstalled windows, deleted every other app so this is the only program running on my Zwift-dedicated laptop. But no good. 
Zwift, please fix!
I have found it is irrelevant how long I have been riding if I try the triple twist loop. Certain crash, 5 attempts. Shortest ride was 3.6km. Longest was to 265m of the end.
Ryzen 4700, 8GB laptop. Before updating drivers, only zwift instance would crash - stop working and die, leaving everything else working… After adrenaline upgrade zwift just hangs with a white filled window.
First crash today using a pace partner too.
I have gone in a different direction. Also had a couple of Zwift freezes with an error popup from AMD adrenalin. This is on a 8 GB Ryzen 5 3500X desktop with a RX 550 graphics card and Windows 10. Previously I ran Zwift on a 16 GB Ryzen 7 2700X with the same RX 550 and Windows version. In that setup I have never had any Zwift crashes. But I also did NOT have the AMD Adrenalin software installed. I have now gone ahead and removed the Adrenalin software and I think windows now uses the drivers that come with it for this graphics card. Since then I have done 7 Zwift rides of varying length (up to 80+ minutes) and not encountered any issues anymore. Fingers crossed.
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So this is rediculous:
I just did a 3+hour ride with a Surface3Pro Tablet I have had for 10 years. I used 576P resolution and the framerate was looooow. Every 20 to 30 minutes the screen froze but after about 5-10 sec. it recovered. That tablet hardly meets the minimum Zwift requirements but it managed to hold on and let me execute the ride.
So why does it work with a 10year old tablet not meeting the minimum hardware requiremets but a much stronger PC nearly meeting the optimum requirements manages 60+FPS and has withstood a torture test crashes everytime after 2-2,5hours? Someone is not doing their homework …
The Tablet has 4GB of RAM and according to the TaskManager Zwift needs around 3-500MB of it.
The PC has 16GB of RAM and Zwift takes between 3 and 8 GB of space find that wierd too…
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