Solutions on Fixing Outlook Error- ‘OST File is Not Updating

How To Fix Outlook Error OST File is Not Updating

If, you are striving hard to solve the outlook errors, then go through this blog and help yourself to find ways to permanently resolve this issue. However, before jumping to the final step on how To Fix Outlook Error ‘OST File is Not Updating, you people should have brief info about Outlook, OST, and PST files.

Usually, outlook (an email application) data files get saved in PST file formats. On the other hand, OST is not an outlook data file. It is a cached data item saved in the system which saves the data in offline mode and reduces the payload of the Microsoft exchange server.

This OST file has a feature of updating itself when connected to the exchange server. However, sometimes it cannot properly update itself and shows the error ‘OST File is Not Updating’ or ‘outlook folder not updating’ or ‘office 365 outlook inbox not updating’.

Therefore, we are here to guide you with a guaranteed solution to your problem. Thus, before referring to the solution on how To Fix Outlook Error OST File is Not Updating, you should be aware of the symptoms. So…

Causes Behind Outlook Error of ‘OST File is Not Updating’


List of symptoms which cause liable outlook error ‘outlook folder not updating’ are-

  • Incorrect profile or setting in outlook
  • The corruption or damaging of OST file due to malware attack
  • MS Outlook does not recognize your OST file

Hence, these reasons definitely want you to seek a solution on how To Fix Outlook Error OST File is Not Updating.

So, without further ado, let’s find some solution to your problem.

Methods of How to Fix Outlook Error OST File is Not Updating

Here, we go into a deep illustration of the solutions to Outlook errors.

  • Updating OST file

For new versions – for versions of outlook 2010 and above, you need to update the OST folder by using Scanpst.exe. Thus, follow the steps below.


  1. Step 1: Right click on folder > Properties > Clear Offline Items > Ok
  2. Step 2: Click on Tab at the Top > Click Send/Receive Tab > Update Folder


For older versions – for Outlook versions of 2003 and 2006, you can update the folder using Scanost.exe. Thus, follow the steps below.


Steps: Close outlook > launch Scanost.exe > Profile > OST file > Repair Error Checkbox > Begin Scan


Moreover, these steps will help to solve your outlook 365 sync issues to resolve your OST file errors.


  • Recreate OST file

This is the best solution on how To Fix Outlook Error OST File is Not Updating. Implement these steps below.


Steps: Backup mail box data in PST format > Delete OST file > Open Outlook > a ‘Preparing for first use’ message appears > wait for Outlook to create OST file


  • Sync Features

Here, to solve your ‘error synchronizing folder outlook 365’ or ‘error synchronizing folder outlook 2016’ you need to check some sync features.

Therefore, here are two ways to solve outlook 2016 sync issues.

  • Check Whether Your Offline OST file is Synchronized or Not

(Steps: click Folder > Properties > Synchronization > Statics for this Folder)

In case, the sync process is not working appropriately, follow the next process.


  • Check your Sync Feature is Enabled or Not

(Steps:  File > Data File Management > click Email Tab on the dialogue box > Mailbox Account Name > Change > Cached Mode option)

If the cached mode option is not active, activate it and reopen outlook after closing everything.


NOTE: These solutions are only for new versions of Outlook. If, your older Outlook version shows outlook sync issues (this computer only), change your personal folder into a default one.

Nonetheless, if these options do not help you, then you have to recover your data from the OST file to PST file.

To convert your files, you can use professional software like Stellar OST to PST Converter Tool, which is the best and trusted software by many IT administrators.

It has no file size limitation and can also transfer the mailbox data from OST to Office 365. Nevertheless, it is available in the FREE demo version for you to get a preview of the real PAID software.

End line

Thus, Outlook is an excellent application. Sometimes it can create errors because you might not have updated it. So…. To regularly check on recent updates and troubleshooting from time to time can prevent errors from happening.

Hopefully, we think we were able to solve your problem on how To Fix Outlook Error OST File is Not Updating. 

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