File extension PREF (.PREF) information

Windows cannot open PREF files?

If Windows is unable to open file extension .PREF you may have registry related errors or may not have the appropriate program installed. We strongly recommend that you run a free registry scan.

Appropriate program:

PREF is a file extension associated with Macintosh Preferences files PREF is a file extension associated with . Incorrect associations are the cause of many file extension errors. Scan your system to prevent, identify and repair PREF file extension association errors.


  • Performance: To optimize memory and CPU usage for PREF files run a free performance scan.
  • Stability: Fix PREF errors to make your system and applications more stable.
  • Drivers: Scan your PC for the outdated drivers which lead to system errors and slowdowns.

You are currently viewing the detail page for ABF file extension. This page contains a detailed description of the ABF file type, software tools to help resolve file association errors in the Windows registry together with relevant system utility applications and other related information.