To manually repair a corrupt PST file in Outlook, you can use the built-in Inbox Repair Tool (ScanPST). First, locate the ScanPST.exe file in your Outlook installation folder. Open the tool and browse to the location of your PST file. After selecting the file, click “Start” to begin scanning for errors. If issues are found, the tool will prompt you to repair the file. Once the process completes, you can reopen Outlook and check if the file is fixed.

However, this manual method has its limitations. ScanPST can only fix minor corruption and may not recover all emails, attachments, or other data from severely damaged PST files. If the file is large or has complex issues, this tool may fall short, leading to partial recovery or data loss.

A more reliable solution is using the PST Recovery Tool, which is specifically designed to repair PST files of any size and recover all mailbox items, including emails, contacts, calendars, and attachments. The tool also supports recovery from encrypted and highly corrupted files, ensuring a complete and safe restoration. With the PST Recovery Tool, you can repair your PST files easily and quickly, avoiding the risks and limitations of the manual process.