The "Entry Not Found in Index" error appears when the database index is missing or corrupted, making it difficult to search for emails and other information. This problem often occurs after a system crash, unexpected shutdown, or improper synchronization with the server.
One way to fix this issue is by refreshing the database index. Users can try pressing Shift + F9 to rebuild the index, refreshing the workspace, or running the Fixup and Compact commands. In some cases, these solutions may resolve minor indexing problems, allowing users to access their emails again.
However, if the error persists and the database remains inaccessible, the safest option is to use eSoftTools NSF to PST Converter. This tool deeply scans the NSF database, repairs corrupted indexes, and restores all emails, attachments, and other mailbox components. Users can also convert their NSF files to PST, EML, or MBOX formats, ensuring that their data is not lost due to database failures.