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Understanding PST File Corruption in Outlook
Cyclic redundancy check Outlook PST file errors occur when your PST file becomes corrupted. Microsoft Outlook stores your personal data in a personal folders, or PST, file on your computer unless you use a Microsoft Exchange server. The PST file includes all your personal Microsoft Outlook data, including your emails, address book and calendar events.
There are a couple of ways of repairing a corrupted PST file, as outlined below.
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Perform Cyclic Redundancy Check & Outlook PST Scan with Scandisk
- Close Microsoft Outlook before you begin, if it’s still open.
- Click “Start" and click “Computer."
- Right-click your “C:" drive in the Computer window and click “Properties."
- Click the “Tools" tab at the top of the properties window and click the “Check Now" button.
- Verify the “Automatically Fix File System Errors" checkbox is checked and click the “Start" button in the Check Disk window.
- Click the “Schedule Disk Check" button to schedule the disk check for the next time you reboot your computer. Windows can’t scan disks that are in use, such as your C: drive.
- Restart your computer. Windows automatically restarts and performs an error check operation before booting to the desktop.
- Try opening Microsoft Outlook again. The CRC error may be fixed. If not, move on to the next section and try using the Inbox Repair tool.
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Inbox Repair Tool
- Close Microsoft Outlook if it’s running. Click “Start" and click “Documents."
- Double-click the “Outlook Files" folder in the Documents library.
- Create a backup copy of the Outlook.pst file.
- Right-click the “Outlook.pst" file, click “Rename," type “OLD" and press “Enter."
- Navigate to the “C:\Program Files\Microsoft Office\Office14" folder on your computer and double-click the “Scanpst.exe" file to open the Inbox Repair Tool.
- Click the “Browse" button in the Inbox Repair Tool window, browse to the “OLD.pst" file on your computer and double-click it.
- Click the “Start" button at the bottom of the Inbox Repair Tool window.
- Click the “Repair" button after the tool finishes scanning your .pst file.
- Open Microsoft Outlook and click “OK" to the error message that appears.
- Click “Open" in the file browser window that appears to create a new .pst file.
- Provide an optional password, if you want one, and click “OK."
- Click the “File" menu, click “Open" and click “Import."
- Click “Import from Another Program or File" and click “Next."
- Click “Outlook Data File (.pst)" and click “Next."
- Click the “Browse" button and double-click the “OLD.pst" file.
- Click “Next" and “Finish" to import your old data into the new .pst file.
Be sure to back up your Outlook data in case you have another problem.
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Microsoft: "Data Error (Cyclic Redundancy Check)" Error Message When Outlook Downloads E-mail; http://support.microsoft.com/kb/319128
Microsoft: How to Perform Scandisk in Windows; http://support.microsoft.com/kb/156571
Microsoft: How to Find and Run the Inbox Repair Tool in Outlook; http://support.microsoft.com/kb/272227
Screenshots provided by writer