.BUP File Extension
File Type 1McAfee Quarantined File
This file is saved in a zipped format. You can view the contents by unzipping it with a file decompression program.
Quarantined file created by McAfee anti-virus products; saves a backup of a file that was moved from another location on the computer because a virus or other malware was detected; 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:
File Type 2DVD IFO Backup File
Backup of a .IFO file from a DVD video disc; stores information about the content of the DVD; may be accessed if the VIDEO_TS.IFO file cannot be read; like IFO files, BUP files are not encrypted.
File Type 3Backup File
File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.
Backup of a data file created automatically by various applications; 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.