Missing software and file associations are the most common cause PUB file problems. It is highly recommended that you scan your PC using the PUB File Repair Tool. It will analyze your files and determine if there are errors that are causing you to have PUB file problems.
PUB file error symptoms can include the inability to open PUB files, program lock-ups, crashes, slow PC performance, startup and shut down problems, and installation errors.
Fixing the Problem
Fixing the problem can be as easy as a couple clicks, first download and run the PUB File Repair Tool. Simply click the link below to download the software.