posnups.exe is part of a product called known as NEC POS for Windows and the developer is NEC Platforms, Ltd. .
If you think that this file contains a virus or another malware, please download a virus scanner.
If posnups.exe is using too much CPU or too much memory in your system, it is possible that your file has been infected with a virus. Installing an antivirus is recommended.
Not all processes can be uninstalled without the help of a 3rd party tool, especially malware. To see if it can be uninstalled, first go to Start > Control Panel > Add/Remove programs and select NEC POS for Windows from the list to remove the process posnups.exe from your computer.
If you have any problems with posnups.exe, you may try using a registry cleaner or a speed-up software to check, analyze, and fix problems that are affecting the performance of your computer.
You may try contacting NEC Platforms, Ltd., the developer of posnups.exe and ask for more information.