Repair PST when unexpected errors make your PST inaccessible
Sometimes you try opening MS Outlook or attempt to access data from PST file but the process fails due to unexpected errors. These errors take place due to PST file corruption and might result in huge amount of data loss. In order to settle these issues and access your critical data, you need to select third party repair PST software.
You come to know about the requirement of third party repair PST software when you start Outlook or access any Outlook item, you might encounter the error message given below:
“An unexpected error prevented access to this file. Use ScanDisk to check the disk for errors, and then try using the Inbox Repair Tool again.”
In most of the cases, you might see all your Outlook data but won’t be able to open it making your data inaccessible. Consequently, you cannot use the data in it. Such errors occur due to PST file or hard drive errors. Due to corruption, Outlook cannot locate or access data from PST file. In order to retrieve your data, you need to have a third party repair PST tool.
If you take a look at the error message stated above, it prompts you to use ScanDisk Utility to check your hard drive for errors. This disk repair utility is designed to have an in-built with MS Windows. If in case your ScanDisk performs the check successfully and does not detects any error, then the problem is with PST file and you need to use Inbox Repair Tool (scanpst.exe) to check and repair the corrupt PST file.
Inbox Repair Tool is an in-built utility in MS Outlook that can detect and repair PST corruption and other minor issues. After successful completion of scanpst check, you can try to open the file to examine whether the problem is fixed or not. Inbox repair tool is helpful in some situations of PST corruptions, but it might not be successful in all scenarios. It can generally repair PST file which got corrupt due to file header corruption. However, if the PST is corrupt due to external reasons, the PST recovery is not possible using this tool. To repair PST gone corrupt due to unexpected errors, you need to make use of PST recovery tool.

outlook notes from corrupt PST file, try using Repair PST Software tool.
outlook journal from corrupt PST file, try using Repair PST Software tool.