I have a Tango printer and keep getting Installation Error InstallCustomActions: DIFxAPI.dll is NO

[Pombafu]

I have a Tango printer and keep getting Installation Error InstallCustomActions: DIFxAPI.dll is NO.  I can't find anything anywhere on this error . . . Help!!

[sandytechy20]

@Pombafu

Welcome to the HP support community.

I understand that you are getting printer installation errors, I am glad to assist you.

Uninstall the printer driver from the root level before installing the new driver to fix the issue:-

Perform root level uninstallation to remove all the printer related software's.

• In Windows, search for and open Programs and Features.
• Select your HP printer.
• Select Uninstall.
• In Windows, search for and open Devices and Printers.
• In the Devices and Printers window look for your HP Printer. If you see it listed, right-click on it and choose "Delete" or "Remove Device.”
• Open up the run command with the "Windows Key + R" key combo.
• Type printui.exe /s and click OK.
• Click on Drivers tab.
• Look for HP Printer driver. If you see it click on it and click Remove at the bottom.
• Select OK.
• Remove all instances of the same.
• Select Apply and OK on the Print Server Properties windows.
• Close Devices and Printers. 
• Restart the PC again.

Download and install the printer using the HP Smart app

Click here to download HP smart app.

Keep me posted.

If this helps, please mark the public post as an accepted solution so that it benefits several others.

Cheers.