[Program Startup Failed] D5 wont start please help

D5 Render Version:

mvidia rtx 4080:
latest studio:
d5 won’t start, please see screenshots.
i also have tried all forum and help centre recommended solutions, nothing seems to work
i have tried to contact you guys and nobody replied after I’ve sent log files so tech team two months ago. :

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Steps to Reproduce (optional):

Hi @mad4nt

Thank you for attaching your hardware information. I see that you’re using an Intel Core i9-13900K processor.

The Program Startup Failed error pop up is a known issue for Intel Core i9-13900K/KF/KS and i9-14900K/KF/KS CPUs when running D5 or other DX12 applications. This is often caused by environmental/system settings rather than a D5 bug. To resolve the issue, we recommend the following:

  1. Update your BIOS to the latest version (April release or newer).
  2. Disable any CPU overclocking, RAM XMP profiles, and Intel Turbo Boost, or restore them to default values.

After making these adjustments, restart your PC and try launching D5 again.

Please let us know if this resolves the startup issue. You may also refer to our User Manual here: Why prompt 'The program cannot be launched because of DLL errors...' or 'Program Startup Failed'? | User Manual

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Thank you for your prompt response.

I am aware that the Core i9-13900K/KF/KS and i9-14900K/KF/KS processors are known to have this issue. A Dell technician previously replaced the processor with an upgraded version, along with the RTX 4080 graphics card and a new power supply. The BIOS was also updated during that visit.

Following these changes, D5 functioned perfectly until the release of version 2.11, after which the same issue reappeared.

I contacted Dell and explained the situation. They verified the hardware and confirmed that the new processor is not faulty, as it belongs to the latest batch.

Additionally, I have noticed that SketchUp defaults to the classic engine instead of the new one. While this may not be directly related to D5, it could provide some insight.

Please note that the XPS 8960 does not offer an option to adjust RAM speeds. I have attached a photo for reference.

Thanks

Hi @mad4nt

So you were able to use the previous version of D5 (2.10 or earlier) without any issues before the problems started in version 2.11? Please try rolling back to the previous stable version of D5 for now. You can find it here: Download Historical Versions of D5 Render

Let me know if the issue persists. Thank you

Hi, i tried older versions, and having same issue, also just now downloaded 3.0 version and again same issue.
Also downloaded d5 Lite for sketchup and it works inside sketchup, but as soon as i click sketchup live sync, same issue as mentioned above in photos.

Hi @mad4nt

Thank you for the update and for testing multiple versions. Since the issue persists even in D5 3.0, we’ll need to investigate your log files in detail.

Please collect your recent log files and send them to our support email address: support@d5techs.com. Please tag me in your email and include the link to this forum thread for reference.

Once we receive your logs, we can analyze them and get back to you with a solution. Thanks for your cooperation.

Hi, all sent to support@d5techs.com. Thanks

1 Like

Hi there,

I am sorry to hear you are having problems. I am also experiencing the same problem and would appreciate it if you could share the resolution here? Thank you

Hello @ismaeel.amin

Did your problem occur just after the 3.0 update? Does it happen even in the newly created file?

Have you also tried the steps in this post?
Why prompt ‘The program cannot be launched because of DLL errors…’ or ‘Program Startup Failed’? | User Manual

If it persists, please also send your log file to @ela

I have followed all of the steps that the D5 page says to follow and still is not working

Screenshot 2026-01-16 130411

Hi @preston

Did your problem occur just after the 3.0 update? Does it happen even in the newly created file?

Is there anything that has changed with your hardware recently? Have you also tried all the steps in this post? Kindly provide more details.
Why prompt ‘The program cannot be launched because of DLL errors…’ or ‘Program Startup Failed’? | User Manual

Hi, thanks for the reply. No this has been going on for a few months.

IF you create a new file in D5 it works, but if you try to create a file with a model from ArchiCAD it crashes and displays that message from above.

I followed every step in D5 support link and did not seem to fix it

Please let me know what information and specs you need from me.

Hi @preston

Sorry for the inconvenience. Could you please provide a screenshot of your System Info from D5 Render?

You can find it here:
D5 Launcher → Help → System Info

Hi @mad4nt

Would it be possible for us to remotely access your device to help resolve this issue on your end? Please let me know. Thank you

1 Like

Hi,

Thanks for the reply!

Attached is my system info for D5

Hi, sure you can i’ll be available from 17:30 today Uk time (15:07 right now) or anytime after 17:30
Thanks

Hi @preston

Just to rule out a known AMD driver-related issue that has been occurring recently, could you please try rolling back your GPU driver to a previous stable version? We’ve seen cases where newer AMD drivers cause crashes, specifically when importing models from Archicad, while empty D5 projects continue to work normally.

You can find the full workaround instructions, along with the recommended driver download link, in the guide below:

After rolling back the driver, please try importing the Archicad model again and let me know if the issue persists.

Hi Ela I’m having somewhat a similar problem, I requested to post a post but waiting on admin approval I think it said.

My problem is similar I also have the same graphics card says the same power being at standard, most updated drivers.

D5 is also updated to 3.0.0 version but my problem is that the application doesn’t even open, it just fails immediately.

It let me open d5 before the 3.0.0 update but here’s my second problem, when I would attempt to try a basic render no modifications D5 would instantly crash with no warning or reason.

I did get the low tdr before 3.0.0 update but my file was basically empty. It’s my first time trying d5 and I can’t even open it anymore. If you have access to confirm my msg from pending that would help, or here helps also

Hi there, I’m writing to ask about an update on this issue. I’ve been having trouble using D5 since version 2.11. Do you have a refund program in place? Or would it be possible to hold off on my payments until this is sorted out? I’d really appreciate your help with this. Thanks!