Error message: twunk_16.exe not compatible with the Windows 7 64 bit system

[GTrialonis]

I recently face a problem with the scanner of the printer. I get an error message on my laptop. The error message says approximately this: The program twunk_16.exe is not compatible with the Windows 7 64 bit system.

Can somebody help. It's frustrating.

Thanks

[MKazi]

@GTrialonis

Welcome to HP Support Forums. 🙂 I came across your post and would like to help.

I understand that you have an HP DeskJet Ink Advantage 4670 All-in-One Printer. I read that when you try to scan there is an error message stating "he program twunk_16.exe is not compatible with the Windows 7 64 bit system." Not worry, I'll do my best to help you. 

To provide an accurate resolution, I need a few more details: 

• Is the printer connected via USB or wirelessly?
• Is the printer able to print and make a copy? If copy works fine then it indicates that the scanning hardware is good
• Does this error come up while using any other program or application on the computer?

Meanwhile, I did some research and found that the TWUNK_16.EXE errors may appear due to the following reasons:

• Either the scanning drivers have an issue.
• Could be because of a virus, spyware, etc. It's better to have your computer scanned through an antivirus software.

I recommend you to perform the following steps to isolate the issue and arrive at a fix: 

• Please download and run the HP Print and Scan Doctor software. This is a free tool for Windows to help resolve issues with the printer drivers. 
• You may try to scan and check if it helps. If the error continues to appear then I suggest you to uninstall the printer drivers from the root level and then reinstall them by following the below steps:
• 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.
• Select Apply and OK on the Print Server Properties windows.
• Close Devices and Printers.

Now, you may download and install the drivers from this link. 

I sincerely hope this fixes the issue. Let me know how it goes. Cheers! 🙂

[GTrialonis]

Dear MKazi. I should first thank you for the very detailed answer to my request for help. It is very structured and impressive and this reflects on HP as a whole. Yes, the printer is connected via wireless network. I can print and copy allright. I have not tried your proposed solution. Prior to receiving your answer, I believe I solved the problem by downloading the driver from HP and subsequently scanned without problem. But I have saved your proposed solution for future reference. Thank you very much, indeed.

[MKazi · Accepted solution]

@GTrialonis

You're most welcome. 🙂

I'm glad to know that the issue is fixed. I appreciate your time and efforts towards resolving the issue.

I thank you for your valuable comments. It keeps us going.

Cheers! 🙂