How to Convert Old OST to PST File?

“Oh no! I cannot access my OST file on Outlook. Actually, I had upgraded my old Outlook to its new version and this problem started from the moment I performed that task. As a result, the old OST file contents have stopped getting accessed. I really need help regarding proper solution tips for solving this matter as I really want my data back present in OST file. Please do write me if you have any suggestions or OST file repairing mechanism.”

Like the scenario given in above paragraph, Outlook .ost files which stores several emails and other relevant items can sometimes get damaged or corrupted due to so many awful issues which floats within your Windows PC with or without your knowledge. Here are some common scenarios which are responsible for corruption or damage of OST file:

  • OST file getting oversized due to inserting of too many email data within it
  • Storing of .ost file in the Windows system having infected hard drive sector
  • Improper OST file compression process or use of faulty compression tool
  • Invasion of severe virus or other external threats on Windows computer
  • Synchronization error between Outlook OST files and the exchange server

These scenarios along with other known or unknown factors make usually your old OST file to get corrupted or damaged and hence you will find your OST file inaccessible at the end. So, the question here is, how to fix old OST file after such corruption or damage issues? Well, you can convert old OST file to PST and make the file accessible once again and you can even extract all the data present within it without any trouble. However, if you are already craving for some suitable OST file converting mechanism, then you are suggested to go for Remo Convert OST to PST, the one and only tool to convert old OST to PST and fix all the issues that are making OST file inaccessible.

More about Remo Convert OST to PST Utility:

This prominent tool uses the most efficient and fast repairing algorithm which converts old Outlook OST file to PST file format within no time. It provides simple, automated, and easy to use platform where you will find just few fixing steps that too comes with understandable guidelines. You can install this powerful Microsoft old OST to PST converter program in your PC without any risk as it has been pre-scanned with reliable antivirus software. The most important feature of this wizard is, it never modifies or alters the original file content while converting old OST file to PST file as it completely runs on read-only mode. Not only that, in case you feel any doubt on this tool, then you can go for its demo version which is available online for absolutely free of cost. Just use it and convert old OST to PST, view the result by yourself, and after getting full satisfaction, you can go for the real package.

Other exciting features of Remo Convert OST to PST tool:

  • Compatible to run on any of the latest Windows OS including Windows 8, Windows7, Windows Vista, Windows XP, Windows server 2008 and 2003
  • The software enables the user with instant preview option for viewing the converted and fixed old OST file
  • Supports you with capable technical expert’s team, who are available for 24/7 to solve any of the product related query that occurs while installing or operating it
  • Capable to convert .ost file to .pst that are created in any Outlook versions such as Outlook 2000, 2002, 2003, 2007 and 2010
  • Can convert orphaned OST file to PST file even if they are in compressed or encrypted or oversized formats


Follow the given process to convert .ost file to .pst:

Step 1: Download and install Remo OST to PST Converting tool and install it on your PC. Now, run the app by double clicking on desktop shortcut. You will find two options on the main screen, "Open OST File” and “Find OST File”. Use "Open OST File" option to choose your OST file if you know its exact location or use “Find OST File” option to search for your OST file.

Convert Old OST File to PST - Main Screen

Figure A: Main Screen

Step 2: After that, click on "next" button to start the converting process. The tool will then safely convert .ost to .pst file.

Converting Old OST File to PST File - Browse OST File

Figure B: Browse OST File

Step 3: Monitor OST to PST conversion process through the progress bar.

Microsoft Old OST to PST Converter - Progress Screen

Figure C: Progress Screen

Step 4: After completing the conversion process, the application displays a confirmation message like “OST file converted succesfully”. At last, preview the converted OST file along with all its data and then browse the location and save the coverted OST file by clicking on "Save" option.

How to Convert Old OST to PST File - Select Destination Path

Figure D: Select Destination Path