My Outlook PST FixTechGuide mailbox repair steps files (30+GB) were still accessible but running off a hard-drive that had started to fail with bad sectors. I was unable to clone the drive or copy the PST files to a new location. Recovery toolbox was able to rebuild my data files as a new data file on a replacement drive location and continue to use my mail file after the recovery process. Tried many other recommended solutions but none were able to help with the recovery apart from the recovery toolbox for outlook. To get started recovering your corrupted Outlook mailbox files, simply navigate to the online file repair tool and upload your file using the form at the top of the page. Remember to first backup the file to ensure you have an original copy saved.

Recover Your Outlook Mailbox Online

Given Outlook’s key role in managing personal and professional communications, maintaining continued access to your mailbox is essential. Simply I wrongly backed-up my old e-mail history in a .ost file instead of a .pst file, and I needed to check some of the e-mails contained in that file. Your program worked fantastic, and I successfully converted the .ost into .pst having back my old e-mails. Had my agenda only in the ost, so not synched to the webmail.After making a new profile my agenda items were gone.

How to repair Outlook PST files online

• My Outlook PST files (30+GB) were still accessible but running off a hard-drive that had started to fail with bad sectors.
• The steps to access the repair tool vary depending on your operating system.
• However, in cases of severe file corruption, some data loss may be inevitable—but rest assured, our tool will recover more than any competing recovery utility.
• If a Microsoft 365 application such as Word or Excel isn't working correctly, sometimes restarting it will fix the problem.
• Whether you have a corrupted mailbox, or constant Outlook crashes, our demo version can give you a glimpse into what SecureRecovery® can recover.

One of SecureRecovery®’s key strengths is its non-intrusive approach to file recovery. Our software only analyzes the damaged file without altering any of its original data, ensuring the remaining integrity of your files is intact. Additionally, SecureRecovery® is compatible with most versions of Microsoft Outlook, and supports both .pst and .ost file formats. Our cutting-edge software performs a thorough scan and analysis of your corrupted Outlook files and then goes on to export all recoverable data into a fresh .pst file. However, in cases of severe file corruption, some data loss may be inevitable—but rest assured, our tool will recover more than any competing recovery utility. I exported from Oulook 365 a folder with a lot of e-mails, ans had a .pst 2,28 Go file.

Best Microsoft Office 365 Migration Tools in 2025

SecureRecovery® is the leading file recovery software for Outlook mailboxes. I need to convert a large .ost file to a .pst file to set up a new laptop. If you don't have a Windows computer with the desktop version of Outlook installed, then you can repair a corrupt PST file by using a special online service here. If you can open the original Outlook Data File, you might be able to recover additional items. The Inbox Repair tool creates a backup file with the same name as the original, but with a .bak extension, and saves it in the same folder. There may be items in the backup file that you might be able to recover that the Inbox Repair tool couldn't.

how to run inbox repair tool for microsoft 365

Moreover, it is known for its fast repair speed and accurate recovery of all corrupted data from the Outlook PST file. SecureRecovery® for Outlook is a cutting-edge utility that repairs and restores data from corrupted Outlook mailbox files (.pst and .ost). Repair corrupted OST In Outlook Our advanced software scans and analyzes your damaged Outlook mailbox files, and then seamlessly recovers crucial information stored within them. The source file was not damaged I was converting my laptop from imap to pop email. As a result of the online service, you get a working PST file with a copy of the contents from the corrupted database, ready to be imported into a new Microsoft Outlook profile. The preview option assures you that the target folders and messages are really recoverable.

How to repair Outlook PST files

When using this solution to recreate or rebuild an Outlook profile for an Office 365 or Exchange account, please make sure that Outlook and its related programs are rebuild Outlook data file quickly closed. If using this method, you won’t be able to repair your Outlook profile for Office 365 or Exchange account; jump to the next section and recreate or rebuild your Outlook profile. We hope you now clearly understand the reasons why users need to repair Outlook profiles for Office 365 accounts. Before adding the recovered PST file to Outlook, you must delete the corrupt PST file from Outlook settings or your Windows Mail profile. Windows Explorer showed a size og 76gb, the recovered files is 50GB. I will still have to verifiy if everything has been recovered.

Rebuild or Recreate Outlook Profile for Office 365 or Exchange Accounts

Used the Recovery tool for Outlook to restore the items to a PST from a backup of the old OST files. This worked well although only the agenda item are restored, not the attachments and extra information field. The Microsoft Outlook Inbox repair tool includes an online version, found here. The Outlook Online Repair Service allows you to repair corrupted PST/OST files on any device (desktop, tablet, phone) with any OS (Windows, Android, macOS, iOS and so on). The PST Online Repair Service does not require Microsoft Outlook to be installed and does not need to have any third-party software installed on your device. Users can easily understand the process, as the solutions explained in this blog are simple and reliable.