The File Extensions Database

.BUP File Extension

  • Developer by: McAfee
  • Category: Misc Files
  • Format: Zip

What is an .BUP file?

.BUP is McAfee Quarantined File

A BUP file is a quarantined file created by McAfee anti-virus products. It saves a backup of a file that was moved from another location on the computer because a virus or other malware was detected.

BUP files are saved to the following directory in Windows Vista and Windows 7:


The Quarantine directory on the local computer can become very large in size as more quarantined files are added. If you would like to remove the files manually, follow these steps:

  • Go to Security Center → Navigation → General Settings and Alerts → Access Protection.
  • Uncheck the "Use Access Protection" option.
  • Delete the files from the Quarantine directory.
  • You can restore files from a quarantined file using the Quarantine Manager. However, there may be instances where the file was already deleted by the McAfee product. In this case, you can manually restore the files by following the steps in this McAfee knowledge base article:

    How to restore a quarantined file not listed in the VSE Quarantine Manager

    Programs that open McAfee Quarantined File
    McAfee Total Protection
    McAfee Internet Security
    McAfee Antivirus Plus
    File Type 2 DVD IFO Backup File
    Category: Backup Files Format: Text

    A BUP file is a backup of an .IFO file from a DVD video disc. It stores information about the content of the DVD and may be accessed if the VIDEO_TS.IFO file cannot be read. BUP files are not encrypted.

    BUP files are useful in case the IFO file is corrupted. Users can then restore the file to the DVD.

    Programs that open DVD IFO Backup File
    Nero 2018
    CyberLink PowerDVD 17
    Corel WinDVD Pro 12
    Apple DVD Studio Pro
    Roxio Popcorn
    Roxio Toast 17
    File Type 3 Backup File
    Category: Backup Files

    Backup file created automatically by various applications. BUP files are generated in case the program crashes or the original file becomes corrupt and needs to be restored.

    The ".bup" extension is often added after the original file extension. In order to open the file with the correct program, the ".bup" extension may need to be removed.

    How to solve problems with BUP files

    • Associate the BUP file extension with the correct application. On :
      Windows: Right click on any BUP file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.BUP files". Mac: Right click (or Ctrl-click) the BUP file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
    • Update your software that should actually open .BUP is McAfee Quarantined File. Because only the current version supports the latest BUP file format. Search, therefore, e.g. on the McAfee manufacturer website after an available .BUP is McAfee Quarantined File update.
    • To make sure that your BUP file is not corrupted or virus-infected, get the file again and scan it with antivirus software.