Hi Wesley DR
Welcome to the Microsoft Community
Understanding your problem you would like to add the inf2cat.exe installation directory to your PATH variable
Please try the following steps
Open the Environment Variables Settings window:
Type "environment variables" in the search box on the taskbar.
Select "Edit system environment variables" or "Edit account environment variables".
Edit the PATH variable:
In the System Properties window, click the Advanced tab and then click the Environment Variables button.
In the Environment Variables window, find the Path variable in the System Variables section, select it and click Edit.
Add the new path:
In the Edit Environment Variables window, click the New button.
Enter the path to the directory where the inf2cat.exe file is located, for example D:\Program Files (x86)\Windows Kits\10\bin\x86.
Press Enter to confirm.
Save the changes:
Click OK to save the new path.
Close all open windows.
Contact me if you need anything else.
Best wishes
Merek - MSFT Community Support Specialist | Microsoft