NUP file icon

NUP File Extension

Smart Security Update Format
  • Developer
  • Category
  • Popularity
    4 (4 votes)

What is NUP file?

Full format name of files that use NUP extension is Smart Security Update Format. Smart Security Update Format specification was created by ESET. Files with NUP extension may be used by programs distributed for Mac OS, Windows platform. Files with NUP extension are categorized as Misc Files files. The Misc Files subset comprises 6033 various file formats. Users are advised to use ESET Smart Security software for managing NUP files, although 2 other programs can also handle this type of file.

Programs which support NUP file extension

The following list contains programs grouped by 2 operating systems that support NUP files. Files with NUP extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

Programs that support NUP file

How to open file with NUP extension?

Being unable to open files with NUP extension can be have various origins. On the bright side, the most encountered issues pertaining to Smart Security Update Format files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Install ESET Smart Security software

Install software to open NUP file The main and most frequent cause precluding users form opening NUP files is that no program that can handle NUP files is installed on user’s system. This one is an easy one. Select ESET Smart Security or one of the recommended programs (for example, ESET Cybersecurity, ESET Nod32 Antivirus) and download it from appropriate source and install on your system. Above you will find a complete listing of programs that support NUP files, classified according to system platforms for which they are available. The safest method of downloading ESET Smart Security installed is by going to developer’s website () and downloading the software using provided links.

Step 2. Update ESET Smart Security to the latest version

Update software that support file extension NUPYou still cannot access NUP files although ESET Smart Security is installed on your system? Make sure that the software is up to date. Sometimes software developers introduce new formats in place of that already supports along with newer versions of their applications. The reason that ESET Smart Security cannot handle files with NUP may be that the software is outdated. The most recent version of ESET Smart Security is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Set the default application to open NUP files to ESET Smart Security

After installing ESET Smart Security (the most recent version) make sure that it is set as the default application to open NUP files. The next step should pose no problems. The procedure is straightforward and largely system-independent

Associate software with NUP file on Windows

Selecting the first-choice application in Windows

  • Choose the Open with entry from the file menu accessed by right-mouse clicking on the NUP file
  • Click Choose another app and then select More apps option
  • Finally select Look for another app on this PC, point to the folder where ESET Smart Security is installed, check the Always use this app to open NUP files box and conform your selection by clicking OK button
Associate software with NUP file on Mac

Selecting the first-choice application in Mac OS

  • By clicking right mouse button on the selected NUP file open the file menu and choose Information
  • Find the Open with option – click the title if its hidden
  • From the list choose the appropriate program and confirm by clicking Change for all....
  • Finally, a This change will be applied to all files with NUP extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Ensure that the NUP file is complete and free of errors

If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the NUP file in question. It is probable that the file is corrupted and thus cannot be accessed.

Check NUP file for viruses
1. Check the NUP file for viruses or malware

Should it happed that the NUP is infected with a virus, this may be that cause that prevents you from accessing it. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. NUP file is infected with malware? Follow the steps suggested by your antivirus software.

2. Verify that the NUP file’s structure is intact

If the NUP file was sent to you by someone else, ask this person to resend the file to you. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. It could happen the the download process of file with NUP extension was interrupted and the file data is defective. Download the file again from the same source.

3. Verify whether your account has administrative rights

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Switch to an account that has required privileges and try opening the Smart Security Update Format file again.

4. Make sure that the system has sufficient resources to run ESET Smart Security

If the systems has insufficient resources to open NUP files, try closing all currently running applications and try again.

5. Check if you have the latest updates to the operating system and drivers

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with Smart Security Update Format files. It may be the case that the NUP files work properly with updated software that addresses some system bugs.

Do you want to help?

If you have additional information about the NUP file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on NUP file.

Top File Extensions
Show more
File Extension of the day
dbk icon


OrCAD Schematic Capture Backup Format

DBK file format is used by OrCAD, a software utility package for creating schemas and designing printed circuit boards. DBK file is a backup copy f...