How to Fix Corrupted Outlook .Ost And .Pst Data Files

To fix corrupted outlook .ost and .pst data files, use microsoft’s inbuilt repair tool called scanpst.exe. Scanpst.exe is an easy-to-use and efficient solution for repairing corrupt outlook files.

Microsoft outlook is an indispensable email client for millions of users worldwide. However, sometimes due to unexpected system crashes, power failures, or human errors, the. ost and. pst data files used by outlook can get corrupted, rendering the entire outlook client useless.

In such instances, it is crucial to have a solution that can help restore the damaged files. One such solution is microsoft’s inbuilt repair tool called scanpst. exe. Scanpst. exe is a quick and effective way of fixing corrupt outlook data files without damaging the original data. In this article, we’ll take a closer look at how to use scanpst. exe to repair corrupted outlook files.

What Are .Ost And .Pst Files?

. ost and. pst files are two types of data files associated with outlook. . ost files (offline outlook data files) are copies of emails stored in an email server. . pst files (personal storage table) are used to store local copies of emails, contacts, and other data.

The main difference between them is their location,. ost files are on the server, while. pst files are on the computer. Both files play an essential role in data backup and synchronization. Losing data due to a corrupted. ost or.

pst file can be devastating, but there are ways to fix it. Microsoft provides built-in tools like scanpst. exe to repair. pst files, and different third-party tools like stellar repair for outlook can fix both. ost and. pst files. It’s essential to ensure data recovery methods for outlook, including backing up.

pst and. ost files regularly.

Causes Of Corrupted .Ost And .Pst Files

Corruption of outlook. ost and. pst files can lead to various issues while accessing mailbox data. The most common reasons for file corruption include sudden power failure, virus or malware attack, oversized data files, software conflicts, etc. When these files get corrupted, outlook performance gets severely impacted.

It can cause the application to freeze, crash, or even stop responding altogether. To avoid these issues, regularly check and repair your mailbox data files, update your outlook software, and avoid overloading your mailbox beyond its capacity. In case your files do get corrupted, fortunately, outlook provides in-built repair tools that can help you fix them.

With a few simple steps, you can easily repair your. ost and. pst data files and restore your mailbox data back to normal.

Manual Methods

Repairing corrupted. ost and. pst files using the scanpst. exe tool is an effective way to restore the data. Follow these simple steps to fix files manually: locate the tool on your device, select the affected file, initiate the scan and let the tool do its work.

Depending on the size of the file, the scanning process may take some time. Additionally, to avoid further damage, you must be cautious while choosing to terminate the tool mid-process. Furthermore, you can take preventive measures such as regular backups and disabling any antivirus scanning synching while accessing the files.

Automated Methods

Automated software is a handy solution to repair. ost and. pst data files that have been corrupted. These programs are designed to scan and repair corrupt files quickly and easily. However, using automated software has its own pros and cons that should be considered before use.

One of the most significant advantages is that it saves time, as the software can scan and repair files in minutes. On the downside, some software can be expensive, and it may not be able to recover all data in some cases.

For best results, try using stellar repair for outlook, which is one of the best automated software available. It’s affordable, easy to use, and can recover all mailbox components like emails, contacts, calendars and more.

Alternative Solutions

One of the most common issues faced by microsoft outlook users is the corruption of. ost and. pst data files. Thankfully, there are alternative solutions available to recover outlook data. In case you have created a system restore point before the corruption occurred, you can recover your outlook data by following a few simple steps.

Additionally, you can recover the data by using a previously saved backup file. Other available options for data recovery include using third-party recovery software or consulting an expert data recovery service. Make sure to use credible sources and reliable software for data recovery.

Restoring your outlook data is crucial, as it can contain important information; therefore, make sure to regularly backup your data to avoid such problems in the future.

Prevention Is Better Than Cure

File corruption and data loss can be a headache, especially with crucial files like. ost and. pst data which are commonly used in microsoft outlook. Prevention is better than cure, and by following simple tips and tricks, you can avoid file corruption and potential data loss.

It is crucial to regularly back up files, so in case of corruption, you can restore them easily. Ensure that proper installation and update of antivirus software is done, and consistently scan your system to prevent any unwanted intrusion. Try not to exceed the size limit of your ost/pst files, and if required, divide them into separate files or folders for easy management.

Lastly, beware of any suspicious emails and do not click on any unknown links or attachments as they may contain malware or virus, which can corrupt your files.

Best Practices

Maintaining and caring for your outlook data is crucial in keeping it secure and up-to-date. To ensure your. ost and. pst files are in good condition, regularly scan and repair them using microsoft’s built-in tools. Back up your data to prevent loss and update to the latest version of outlook to access new features and fixes.

Keep your computer secured with effective antivirus software and prevent any unauthorized access by setting strong passwords. Finally, organize your emails and delete any unnecessary ones to free up storage space. Following these best practices will keep your outlook data in top shape and prevent future issues.

Frequently Asked Questions Of How To Fix Corrupted Outlook .Ost And .Pst Data Files

How Do I Know If My Outlook Data File Is Corrupted?

One indication of a corrupted outlook data file is if you are unable to open your emails, attachments, or contacts. You may also experience freezing or crashing when using outlook. Another sign is if you receive error messages indicating a problem with your.

ost or. pst file.

How Can I Fix A Corrupted .Ost File?

One solution to fix a corrupted. ost file in outlook is to use the built-in scanpst. exe tool. This tool can scan and repair errors in the file. Simply locate the file using the tool, scan for errors, and repair the file as needed.

How Can I Fix A Corrupted .Pst File?

To fix a corrupted. pst file in outlook, you can try the scanpst. exe tool or a third-party recovery software. Using scanpst. exe is recommended as it is a free and effective tool provided by microsoft. To use a recovery software, select a reputable product and follow their instructions for recovering the file.

Can I Prevent Outlook Data File Corruption?

You can take steps to prevent outlook data file corruption by regularly backing up your files, avoiding abruptly closing the outlook application, and limiting the size of your mailbox. Additionally, you can optimize your mailbox usage by removing unnecessary emails or attachments.

How Do I Locate The .Ost Or .Pst File In Outlook?

To locate the. ost or. pst file in outlook, go to file, account settings, and select account settings again. Then, click the data files tab and the file name and location will be listed for each data file. You can also right-click on the folder in outlook and select properties to locate the file location.


After following the above-mentioned steps carefully, you should be able to fix your corrupted outlook. ost and. pst data files. It is always a good idea to keep a backup of your important files to avoid any data loss. By using the inbox repair tool or a third-party tool like stellar repair for outlook, you can easily repair your existing data file or recover the data from a backup file.

With these options at your fingertips, you can ensure that your outlook files are always in good health and that you never lose any important information. Keeping your outlook data safe and secure is crucial, and taking these simple steps can provide peace of mind to any outlook user.

So, do not hesitate to take action as soon as possible to avoid facing any issue with your outlook. ost and. pst data files.