Has anyone experience a winError[5] Access Denied in Windows 10?

[Gribouillis]

I'm not a Windows user but it would be a good idea to get the command that python tries to call by printing the arguments before the statement proc = Popen(arguments, stdout=PIPE) at line 366 in updateMakefile.py. If these arguments are for example ['spam.exe', '-s', 'eggs', 'ham'] then you could

• check that the program can access spam.exe (permissions)
  
• try the command spam.exe -s eggs ham in a terminal (cmd window) to see if it runs correctly.