How Do I Fix Eset Nod32 Error 0x4002?

Make sure that you don’t have any other antivirus software installed on your computer.
If you have any other security programs installed on your computer, uninstall it.
Ensure that you are using the latest version of ESET antivirus software.
If you are using an old version of ESET NOD32, try upgrading the software and check whether the issue is resolved.
Launch the ESET user interface by clicking on the ESET antivirus icon on the desktop.
Select the ‘Open ESET NOD32’ option from the displayed list.
You can see that the virus definitions are out of date.
Click on the Update database link to check for updates.
If the error occurs, click OK.
Now, press the F5 key to go to the Advanced setup section.
Otherwise, click the Setup menu and click Advanced Setup.

Click on the Clear option next to the Clear update cache section and click OK.
Now, go back to the home window and select the Update database link.
If you find that the error occurs again, restart your computer.
Uninstall the ESET NOD32 antivirus program completely by removing all the registry files.
Now, launch a browser and type the official ESET website URL in the address bar.
Select the ESET NOD32 antivirus software. You can either use the free 30-days trial or paid version of the software.
Go to the Advanced download and choose your operating system from the drop-down. Then, click on the Download option.
Once the software is downloaded, double-click on the software package and install ESET by following the instructions on the screen to resolve the issue.

If you need a remote assistance to fix Eset Nod32 error 0x4002. Click the call button available on the screen.