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How to Locate scanost and Execute OST file recovery

Microsoft enables Outlook users to store Offline data temporarily on hard drive in the form of OST files during the absence of Exchange Server. These temporary files get automatically synchronized with the previous data files once Exchange Server and MS Outlook reconnect. However, due to the occurrence of synchronization error these files may not update automatically. Perceiving the probability of synchronization error, Microsoft provided OST integrity Check tool named Scanost.exe, which detects and repairs this particular issue. To utilize this inbuilt tool, user must be connected to Exchange Server, as it cannot run offline.

By default, scanost.exe is provided by Microsoft along with Microsoft Office suite. To execute scanost.exe utility, one got to get connect to exchange account. Therefore, locate OST Integrity Check tool (scanost.exe) by executing it:

  • Drive:\Program Files\Microsoft Office\Office_version

However, one also got to make a note that its location in Windows OS depends on the Outlook version utilized by user. It varies from version to version.

Ms Outlook Version Scanost.exe Location
MS Outlook XP C:Program Files\Common Files\System\MAPI\scanost.exe
MS Outlook 2000 C:Program Files\Common Files\System\MAPINT\scanost.exe
MS Outlook 2002 C:Program Files\Common Files\System\MAPI\scanost.exe
MS Outlook 2003 C:Program Files\Common Files\System\MSMAPI\scanost.exe
MS Outlook 2007 C:Program Files\Microsoft Office\Office12

To utilize scanost.exe, user must make sure that all Outlook files along with application must be closed and then, launch scanost.exe to initiate the OST file recovery procedure. User must follow below mentioned steps in order to utilize this OST integrity check tool perfectly:

  • STEP 1: After launching the application, Inbox Repair Tool window will display on user’s screen listing Outlook profiles created by user.
  • STEP 2: Select the particular profile that carries corrupted OST file.
  • STEP 3: Now, OST integrity check window will appear asking user to choose the folders or files to be scanned. Select the required folders.
  • STEP 4: Check the Repair errors checkbox below the window to repair the selected files and folders.
  • STEP 5: Click the Begin Scan button to initiate scanning of chosen OST files.
  • STEP 6: Upon the completion of scanning procedure, user will receive a message on screen stating, “The scan is complete. See the OST Integrity Check message in your Deleted Items folder for more details.”

However, this method may not prove to be successful all the time as scanost.exe works only when files have been corrupted due to synchronization issue. Besides this, it has few more drawbacks such as:

  • Cannot work on severe corruption issues (hardware issues and software issues)
  • Not incorporated in MS Outlook 2010 and later version to fix OST file issues
  • May provide minimal output ins some synchronization issues
  • Can affect the integrity of already corrupted OST files

To resolve aforementioned cases Microsoft expert advice utilizing professional Kernel for OST to PST tool. While choosing external source user must test its credibility by utilizing its trial version as it would help user in better decision-making. These third party tools convert corrupted OST files in PST format to obtain the lost data.



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