Reduce OST File Size

How to Reduce OST File Size in Outlook [2010/2013/2016]

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Is your Outlook data file .ost gets oversized? No worries here in this guide we will help you to reduce OST file size without any complex steps.

Both the OST and PST file plays an important role in the working of Outlook data files. And if any one of them gets an error it affects the functioning of the Outlook data. As you know OST file stores the copy of Exchange server data which is configured with Outlook.

But the point is OST file has some specific storage limit. And these limits totally depend upon the MS outlook version which is installed on a user system.

Versions of the MS OutlookLimit Of OST file Size
Outlook 2010 and Updated Versions50 GB
Outlook 200720 GB
Outlook 2002 and Older Versions2 GB

How OST File Limit Increase?

OST file saves all the information since the account is created on MS Outlook. It contain information like emails, calendars, contacts, tasks, subject, attachments etc. And if the user forget to delete the unrequired items it starts making OST file oversized.

Reduce OST File Size with Manual Approach

You can compact outlook data file by using the unbuilt Outlook feature. Just follow the below steps to do this task:-

  • Start the MS outlook program and tap on the file button
  • Tap on the Info button
  • And from the account settings choose the account settings option
  • Tap on data files option and choose the data file that needs to be compact and tap the settings
  • In the next window select the Advanced button then tap the outlook data file settings
  • At last click on compact now to finish the process.

Suffering from the Synchronization problem of OST file then check out this detailed post to fix OST File not Synchronizing

Compact OST File With Automated Tool

The above manual approach is not useful for larger amount of Outlook data files. And the OST file is corrupt it can also lead to huge data loss.

So at this time, you can go with SysInspire OST to PST Converter tool that can easily fix corrupt OST files without data loss. It converts OST files to PST either it is oversized or not.

And the best thing is it allows to split PST file into various small sized PST files because of its splitting features. You can also avail its free trial version to check about its working.

Final Words

Users have to face many errors due to oversized PST files so to sort out this problem we mentioned the solution. Here we provided a manual method to reduce OST File Size and if you find this method not useful you can use an automated tool.

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