Scanpst.exe Repair Process and Use
Computers & Technology → Email
- Author John Peter
- Published November 1, 2009
- Word count 740
An Outlook Personal Folder might get damaged due to several reasons including unexpected shutdown, virus infection, operating system problems and storing the file on network. Such events cause file inaccessible. Microsoft provides the Inbox Repair Tool, also called Scanpst.exe, to fix most of such file corruption problems. The tool allows you to recover messages, folders and other items from a damaged .pst file in most of the cases. But Inbox Repair Tool has some limitations and hence can repair the corrupted .pst file in restricted number of cases. So, if the tool fails to repair file corruption, you need to use third-party applications to perform the task.
Inbox Repair Tool Repair Process
Outlook personal folder is stored as a database file with structures such as reference counts and BTrees. Scanpst examines the file on the basis of these internal data structures and performs a low-level scan of the file. The tool validates the file by verifying specific blocks of tables or structures. If any of these blocks is found to be corrupted or unreadable, Inbox Repair Tool deletes it. As a result, the tool also removes the item while validation that is associated with the corrupt block. When an item is removed, the log file of Scan PST records the corresponding entries. The changes performed by the tool are visible at higher-level, which involves messages and folders:
Inbox Repair Tool deals with messages as:
1-By validating attachment and recipient tables
2-After the above steps are successfully accomplished, Inbox Repair Tool performs some basic steps required to synchronize recipient properties on the message and contents of recipient table. It also performs steps for validating parent folder of the message and checks the message for some valid set of properties, such as PR_CREATION_TIME, PR_MESSAGE_FLAGS etc.
3-By modifying recipient display properties in order to make them consistent according to recipient table recovered.
4-After the above operation succeeds, Inbox Repair Tool then puts the orphaned messages in a single Orphans folder.
Inbox Repair Tool deals with folders as:
5-Verifies if correct tables are associated with the correct folder
6-Scans the .pst file database row-wise for each table while making sure that subfolder or message exists, as expected
7-If no subfolder or message is found, it removes the corresponding row
8-If it finds the subfolder or message, it further validates it
9-However, if it successfully performs the validation, the tool analyzes the now-recovered message values to make them consistent with table values. If the entire structure of the folders is corrupt, they are recreated with no data
Functions of Inbox Repair Tool:
1-Analyzes .pst file directory structure
2-Analyzes item headers
3-Can convert any of the files into .pst file
4-Takes .pst file backup before trying to repair it
5-Repairs Personal Folders file by finding and correcting possible problems
Steps to use Inbox Repair Tool:
1-Since Scanpst is a hidden executable file, you need to first ensure that 'Show hidden files and folders' option is enabled. To do so, click Start-> Run or Start Search(Windows Vista). You then need to type Control Folders. In Windows Vista, you will need to run as an administrator to perform this task. Next, you need to double-click the Folder Options and click to choose the View tab. You should then select the 'Show hidden files and folders' option under Hidden files and folders.
2-Next, you need to locate the tool by clicking Start-> Find or Search in the search box.
3-Open the tool by double-clicking it and Browse to locate the corrupt .pst file
4-Start the repair process by clicking 'Start' and click 'OK' when the process completes
5-After the repair process is complete, you need to move the repaired items to a new .pst file
Limitation
This tool might fail to repair the file if the degree of corruption is high or the file exceeds it size limit of 2 GB. Moreover, the use of tool can prove destructive as it might delete the data rather repairing it. To cope up with such problems, you need to use third-party PST repair tool. Using high-end scanning algorithms, these software serve as more powerful applications by making comprehensive and safe .pst file repair.
Stellar Phoenix Outlook PST Repair is a safe and advanced repair tool for damaged .pst files created with MSO 2007, 2003, 2002 and 2000. It is a user-friendly .pst file repair utility embedded with powerful recovery features. The software is compatible with Windows Vista, XP, 2003, 2000 and NT.
Author have more than 6 Year of Experience in Computer field, member of Internet Marketing Society, has Specializing in scanpst and Outlook Pst Repair Software. For More Information visit http://www.scnapst.net/
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