Hello everyone!
I have been using Vegas Pro 12 and all above versions on Windows 7 64-bit Ultimate and never had issues with composing, rendering or any other features. However, in Vegas Pro 17 I noticed that the Render As menu broke down overnight — but it didn't bother me as I could still use the Batch Rendering feature with my custom settings. I also noticed that the special Options menu (accessed by holding down Shift) opens a blank window but this is probably because of the non-Win10 operation system.
I recently purchased Vegas Pro 19 (Build 458) and installed it on my system where the last Vegas Pro 18 edition was also installed. Everything worked fine after the installation and system restarts and I configured Pro 19 the same way as 18. This new 19 edition was still not able to open the Render As menu (without crashing VP19) so I tried replacing the RenderAsDialog.dll file from earlier versions as suggested in other Resolved forum threads. I tried restoring default settings with the Ctrl+Shift launch method, completely uninstalling and reinstalling Vegas Pro 19 (and Pro 18 is not on the system anymore at all), .NET Framework 4.8 (and earlier but they get upgraded automatically by 4.8), DirectX 9.0, about 7 NVIDIA drivers (from the latest to earlier versions), and .NET ucrtbase.dll files for last resort fixing attempts based on procmon logs (where the last IRP_MJ_CREATE event is in vegas190.exe is looking for "C:\Program Files\VEGAS\VEGAS Pro 19.0\models\colorization_model_v2.xml" before exiting with Process Profiling event; but I doubt this helps).
I have another system which runs the latest Vegas Pro 19 completely with the same Windows 7 Ultimate configuration and updates, and I could not find any leads on what could be working differently.
Long story short: Vegas Pro 19 on my system Windows 7 64-bit Ultimate can not launch after crashing at the "Creating Windows" splash screen. It was working before and stopped working after I tried replacing the RenderAsDialog.dll in hopes with fixing the broken Render As window. I have been looking at similar and different Resolved threads here (including all official support guides) and none of the provided methods changed the situation.
Is there anyone who knows how the above problem could be fixed without re-installing Windows 7 Ultimate (which runs every other program or game without issues)?
I say thanks in advance to anyone with an advice — have a nice day, fellow video editors! :)