Fixing PST file error “attempting to validate BBT refcounts”

Outlook stores all its different data items viz. email, appointment, notes, journals, tasks etc in a single PST file. As a result the file becomes an important data store and any sort of inconsistency in the same can result in severe data loss situation and further more problems for the concerned user. PST file is susceptible to damage and the reason for same can be many different ones such as oversize issues, virus infection, application error, PST saved on network and the list goes on. As problems are quite uncertain in nature maintaining data backup at frequent time interval is ought to be necessary. However, even backup file does not ensure for complete data restore particularly if it not updated or fails while restoring being damaged in someway.

This necessitates the requirement of repair utility to fix PST file error & for the very purpose Inbox repair tool has been provided with outlook from Microsoft and is installed automatically on installing outlook. When, at a particular point of time problem takes place in your Outlook personal folder files, user is asked to use the same for fixing PST files but it hardly happens so and you one is interrupted in between by strange error messages, may be as –

“ Attempting to validate BBT refcounts ”

“ Couldn't find BBT entry in the RBT (211C8) ” in error log report.

What causes error “couldn't find bbt entry in rbt”?

Following are the reasons on account of which the specified error with outlook PST file may take place –

• PST file has become oversized
• Outlook fails to find BBT file entry
• Corrupt or damaged outlook PST

The oversized file issues is directly applied on outlook 2002 and versions earlier to it which are based on ANSI format with a file size limit of 2 GB, crossing which is risky as it would make the file corrupt & inaccessible.

Steps for fixing PST file error “attempting to validate BBT refcounts” –

The methods to be implemented for resolving the error received and having easy access to PST file includes –

• Reducing PST file size, which includes deletion of all unnecessary items from the folder, then empty ‘deleted items folder'
• Reinstall Microsoft outlook to get rid of issues with BBT entry location
• The corrupt files are to be repaired and as scanpst.exe has been found incapable of doing that, skilled utility for the same is required such as PST repair software.

PST Repair Vista is an advanced & equipped utility for scanning PST file for finding existing problems and thereafter fix & restore it data items safely & completely. The high end scanning algorithm used in the program makes it capable of fixing the issue easily & in all cases.