If you've encountered the frustrating "Microsoft Outlook Data File Cannot Be Accessed" error, don't worry; there are some manual solutions that may help. This error often occurs when your Outlook data file (OST or PST) becomes corrupt or inaccessible, hindering your access to important emails and data.

A common manual solution is using the 'ScanPST' utility, a built-in tool in Microsoft Outlook. You can locate it in the Office installation directory and run it to scan and repair the corrupt data file. However, this method has limitations. It may not be able to handle severe corruption issues, and there's a risk of data loss during the repair process. Moreover, it's a time-consuming process, and you might not always get successful results.

For a more reliable solution, consider using the Cigati OST File Recovery Tool. This third-party software can effectively recover and migrate your email data, even in cases of severe corruption, ensuring a safer and more efficient data recovery process.