Fix Error MS Outlook OST Could Not be Accessed the Handle is Invalid

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“Hi guys... Since from couple of days my Microsoft Office Outlook has become erroneous and its mailbox has become inaccessible. When I click on Inbox folder, I am getting error message that went, “Unable to display the folder. The file xxx.ost can not be accessed. The handle is invalid.” on Windows computer. Please who knows the easier fix for this problem can help me out! Thanks in advance!”

Even though MS Outlook is efficient email client, several times you get many error messages as mentioned while synchronizing Offline Folder file (.ost) with MS Outlook from Exchange Server. One of the error messages is given above. Outlook OST file could not be accessed the handle is invalid error will occur due to various reasons, Let us discuss some of them:

  • Formation of bad sectors on hard drive where Outlook OST file is saved
  • OST file corruption due to malicious virus attack or oversizing issues
  • Interruption while synchronizing OST file with Microsoft Outlook

Solution to fix Outlook OST could not be accessed the handle is invalid error:

If you suspect Outlook OST could not be accessed the handle is invalid error in Microsoft Office Outlook, then you will also notice the subsequent warning that suggest you to use OST Integrity Check tool (Scanost.exe) to fix your buggy Outlook OST file. In case OST file got corrupted severely due to this error, then this utility might fail to fix the issue. In such instance, you can go for some manual steps to fix error Outlook OST could not be accessed the handle is invalid in Outlook. One can solve this error by renaming the OST file. When you rename OST file, MS Outlook will rebuild OST file from the database of the Microsoft Exchange Server. Even after tracking these steps if you not succeed to fix this error message, then go for reliable Outlook tool such as Yodot OST to PST Converter to fix the Outlook OST could not be accessed the handle is invalid error and convert inaccessible OST file into PST on Windows system.

Tool to fix Outlook OST could not be accessed the handle is invalid error:

Yodot OST to PST Converter software is the most used and outstanding tool to fix error Outlook OST could not be accessed the handle is invalid on Windows computer. This utility has incorporated with powerful algorithms that even repair and convert severely corrupted Outlook OST file to PST file. At the same time, you can recover all Outlook OST file elements such as mailbox, calendar items, contacts list, notes, journals, tasks, etc in Microsoft Office Outlook. One can also fix and convert OST to PST to resolve error cannot open your default email folders, this data file has not been configured, outlook failed to respond and many more errors. This application is compatible with various versions of Microsoft Exchange Server such as Microsoft Exchange Server 5.0, 5.5, 2000, 2003, 2007 and 2010. Even, this program flexibly runs on Windows computer installed with Windows 8, 7, Vista, XP, Server 2008 and 2003 operating systems.

Simple steps to fix OST file error and convert it to healthy PST file:

  • Download and install Yodot OST to PST Converter program to Windows desktop / laptop
  • Setup the application and follow the provided on screen instructions
  • Main screen contains two options, "Open OST File” and “Find OST File”
  • Select "Open OST File" option to choose inaccessible OST file. If you are don’t know about OST file path, then click on “Find OST File” option to locate erroneous Outlook OST file
  • Next, browse for the destination path to save the converted OST to PST file format
  • Afterwards, click on “Convert” button to initiate the conversion process
  • Soon after completion of the conversion procedure, this software gives a notification that states as OST file conversion is completed successfully

Precautionary steps:

  • Make a copy of Outlook OST file before employing any manual steps to fix error associated with it
  • Regularly backup contents of MS Office Outlook
  • Keep your system free from suspicious viruses and save your valuable data

Other Popular Software

Yodot Outlook PST Repair

Fix corrupt PST or OST files created using different Microsoft Outlook versions. Read-only software to repair damaged PST files without changing source PST file and generates a new healthy PST file after the repair process.


Yodot File Recovery (Windows)

Undelete your most important files and folders deleted or lost from system hard drive or external storage drives on Windows OS. This easy to use application for Windows OS can recover wide range of files from all storage media.