Please try the following, I had exactly the same issue on one of my systems where I also installed the preview version on.
Rich (BB code):
Could not create process '"C:\Users\Ted\Desktop\061921-50562-01.dmp"', Win32 error 0n193
%1 is not a valid Win32 application.
Open an elevated command prompt and run the following commands.
Code:
cd "C:\Program Files (x86)\Windows Kits\10\Debuggers\x64"
WinDbg.exe -IA
When the command completes you will see the following message: "WinDbg successfully registered file associations for .DMP, .HDMP, .MDMP, .KDMP and .WEW."