DesignJet Utility not initializing

[BrunoSouth]

Hi. I am trying to open DesignJet Utility. It just shows the intro dialog window and then nothing opens. 

Do you know how to fix this issue?  I tired running it by Administrator, but no luck either.

Thank you 

[Meghana_10]

Hello @BrunoSouth, Welcome to the HP Support Community. 
 

We understand how concerning this can be. If the HP DesignJet Utility only shows the startup screen and then closes or fails to open, it is usually caused by a software, background process, or printer communication issue. The good news is that this can often be fixed without affecting the printer.

1. Clear Stuck Background Processes

If a previous instance of the utility did not close correctly, Windows may prevent a new instance from opening.

1. Press Ctrl + Shift + Esc to open Task Manager.
2. End any running HP DesignJet Utility, HP, or printer-related background processes.
3. Open Services (services.msc).

2. Reinstall the HP DesignJet Software and Driver

A clean reinstallation replaces any damaged program files that may prevent the utility from launching.

1. Open Programs and Features in Windows and uninstall all HP DesignJet T120 software.
2. Press Windows + R, type printui.exe /s, and press Enter.
3. Open the Drivers tab and remove the HP DesignJet T120 printer driver.
4. Restart your computer.
5. Download and install the latest driver and software package for the HP DesignJet T120 24-in Printer from the official HP Software and Driver Downloads page. HP DesignJet T120 Printer Software and Driver Downloads | HP® Support

After reinstalling the software and clearing background processes, the HP DesignJet Utility should open normally. If the utility continues to fail, the printer should still be manageable through the Embedded Web Server while further troubleshooting is performed.

Have a great day!