Attempting to Validate BBT Refcounts; Cannot Find BBT Entry in RBT: Fixed
Are you a Microsoft Outlook user who faces problems while Attempting to Validate BBT Refcounts? Outlook is the most commonly used email application all over the world. Did you ever think about how Outlook stores its data? The ‘Personal Storage File’ (PST) is the Outlook file format where MS Outlook emails, contacts, calendars, tasks, journals data are stored. And you may have seen error messages appearing in your Outlook account from nowhere. It is just because the PST files are highly prone to errors.
A PST file can get corrupted due to many reasons like virus attack and other infections, abrupt Outlook application faults, saving PST on network, unexpected shutdown or system crash etc. And for resolving this PST file issues, Microsoft provides a built-in utility called Inbox Repair Tool (ScanPST.exe) that can easily fix minor corruptions in Outlook PST files. Exactly this tool is having limited functionalities and it often fails when PST files are corrupted. So to fix severe issues in PST files, use third party software like Outlook PST repair tool to repair corrupted Outlook PST files in few simple steps.
When a corrupted PST file is processed by Inbox Repair tool, the PST file may become inaccessible or an error message can be displayed in the log file as Attempting to Validate BBT Refcounts and Couldn’t find BBT entry in the RBT (211C8).
Later if the user runs again the ScanPST.exe tool, the Inbox Repair tool will pop up another error message like: ‘Only minor inconsistencies were found in this file. Repairing file is optional. To repair it, click Repair’. But there won’t be a ‘Repair’ button provided in the window displayed.
Cause of Inbox Repair Tool Error
Now find the exact reason for the occurrence of this error message in Inbox Repair Tool while repairing corrupted PST files from Outlook 2016, 2013, 2010, 2007 etc. There are various causes that are responsible for the occurrence of this error message. Getting Attempting to Validate BBT Refcounts or Couldn’t find BBT entry in the RBT (211C8) error message in log file created by ScanPST.exe tool means that the Inbox Repair Tool has failed to repair the PST files and it leaves the corrupted PST data files unaffected.
- For Outlook 2002 and earlier editions, the PST file size limitation can result in this error message. When PST file exceeds the limit, it may reduce the size of the PST file by deleting some items stored in it. And finally, result in loss of data and PST file corruption.
- The second chance of cause is when MS Outlook is unsuccessful to find the BBT entry of the PST file.
- This error can also occur when PST files are damaged or corrupted.
It is important to resolve this type PST file errors quickly and efficiently. A PST file is highly error prone and can be corrupted or damaged easily. So these kinds of errors are to be resolved fast, or it may result in data loss.
Solve: Attempting to Validate BBT Refcounts Error
Solving this error cause is not so difficult task, first of all, one needs to eliminate the possible causes for this Attempting to Validate BBT Refcounts and Couldn’t find BBT entry in the RBT Outlook 2016, 2013, 2010, 2007 error issue.
Reduce PST File Size
Try to reduce PST file size in the system. Empty the ‘Deleted Items Folder’ folder and also delete unimportant emails from all the folders including Inbox, Drafts, Sent Items, Conversation History etc. This may help you reduce the size of the PST file to a small extent.
Reinstalling Microsoft Office Outlook
Reinstall your Microsoft Outlook account once again to resolve issues in Outlook registry. Corruption or error in Outlook registry may lead damage of PST files. So, to fix Registry errors, follow the given steps to repair MS Outlook installation.
- Close MS Outlook Account
- Click on Start >> Control Panel
- Go to Uninstall a Program >> Microsoft Office >> Change
- Click on Repair >> Continue
Disable Add-ins
Some Add-in can also result in corruption of Outlook PST files. That is, corrupted Outlook Add-ins can also result in Attempting to Validate BBT Refcounts or Couldn’t find BBT entry in the RBT (211C8). Disable all the unnecessary add-ins installed on Outlook 2016, 2010, 2013, 2007 and other lower editions by opening MS Outlook in safe mode. Follow the given steps.
- Open MS Outlook
- Click on File >> Options >> Add-ins
- In View and Manage Office Add-ins >> Manage >> COM Add-ins >> Go
- Now deselect each box one at a time >> now restart MS Outlook
Or
- Go to Outlook Add-ins >> Tools
- Click on Trust Center >> Disable the additional Add-ins
Automated Solution to Fix Attempting to Validate BBT Refcounts
The only available manual way to fix PST file in Outlook account is Inbox repair tool. The ScanPST.exe is the built-in utility provided by Microsoft to fix Outlook PST files. But what if Inbox Repair tool itself fails during execution and display errors like Attempting to Validate BBT Refcounts and Couldn’t find BBT entry in the RBT (211C8). The efficient and preferable solution at such time is to go for a commercial product that can repair damaged Outlook PST files in batch without any data loss. The third party Outlook PST Repair Software can fix multiple PST data files and can recover deleted Outlook emails, contacts, calendars, etc. effortlessly.
Final Words
Microsoft Outlook PST files are prone to corruption and can cause damages to data stored in PST files. Outlook emails, contacts, calendars, tasks, journals are stored as PST format in the local drives. When PST file gets corrupted, the available direct manual solution is the Inbox Repair tool. And in some cases, this ScanPST.exe tool fails and result in error message Attempting to Validate BBT Refcounts and Couldn’t find BBT entry in the RBT (211C8) in Outlook 2016, 2013, 2010, 2007 editions. The articles guides various solution to fix this issue. It also suggests a direct method to repair corrupted Outlook PST files without any data loss.