How to resolve the OST file too large error in Outlook

in #ost6 years ago (edited)

Summary:The article tells about the OST file document, motives why OST files eventually become oversized displaying an error OST file too large and the feasible manual and automatic approaches to solve this issue.

Both the OST and PST files are of significance for the Outlook users since they have significant data of the mailbox. Here, the documents that are in the account are OST files i.e. Offline Storage Table files that keeps on bolstering in volume since information is being added automatically to the mailbox. Nonetheless, in ANSI format, documents may extend around 2 GB and in UNICODE format, it may extend up to 50 GB. There's also a situation that even if you delete OST file, size will not reduce based on the volume you have deleted because white distances take the free space.

OST file - An overview
OST files save all of the work in offline mode and when Outlook goes online, all of the data gets synced online. In a regular period of time, there's auto-sync with the host. With the support of OST files, users may get the job done in offline mode. Also, it helps to work when the network connection on the server is weak and slow.

Reasons Outlook size too large error appears
OST files include entire mailbox data that has been piling up since your user account was made. Since then, none of the information was deleted and OST files have become oversized creating an OST file too large error . The big sized OST file Includes the components as :

  • Hidden Products.
  • Shared folders connected with an extra mailbox or Exchange accounts.
  • mailbox items such as emails, events, contacts, journals etc.

Issues caused by Outlook because of oversized OST file
There are some problems that arise in Outlook because of OST file too big error for example:

  • Users aren't able to add data in the existing Exchange .ost file.
  • Glitches and pauses in Outlook.
  • .ost file document becomes inaccessible.

Workarounds to mend OST file too big mistake by lowering OST file size
Because there's a consistent collecting of mailbox information, OST files eventually become enormous in size and begins creating errors and issues. 1 such mistake is OST file also big. It will become a essential undertaking to correct these kind of mistakes to ensure proper performance of their mailboxes and processes. Additionally, with the oversize OST document, Outlook becomes inaccessible and can corrupted whole information of OST and PST. Thus, let us explore the methods to correct these kind of problems and solve the mistake OST file also big.

Manual methods

Compacting Outlook mailbox data by reducing OST file size

Disabling all of the Add-ins allowed
There could be a possibility that Add-ins interrupt the normal performance of MS Outlook. Thus, disabling them wouldn't be a bad idea.

  1. Go to file menu, Click Add-ins.

  2. From the Manage option of Add-in in the bottom, Pick the COM Add-ins and hit Next.

  3. Deselect the Add-ins which aren't being used and click on OK.

Auto Archiving large OST file data
Archiving may be a good alternative since it will help manage mailbox data and decrease OST file size limitation. For this reason, space inhabited by OST files on the server will be cleared and chances of occurrence of OST file too large error would become minimal.

1.From the Outlook, click the File tab and then cleaning tools. Select mailbox cleanup alternative.
2.Currently, you're provided with two choices:

  • Transfer the old mailbox items into an archive by clicking AutoArchive alternative.
  • Click Empty for deleting things in deleted items folder.
  • An automated way of repairing OST file too big error
    The above-explained manual approaches can be used to decrease OST file size, however, are lengthy and time consuming. These approaches might work for many users but for many others, it might not operate. Furthermore, if there's big corruption in OST file, there's a high chance of loss of information. Even if you delete OST files, they may again corrupt. So, users must convert the OST to PST file format to prevent further corruption of mailbox items. Thus, to prevent all these scenarios, it's suggested to use a third party OST to PST Converter tool to fix the OST file too big error.

    Final Words
    In the above discussion, it's clear that using manual approaches we could reduce the OST file size and resolve the error OST file too large. However, the method is quite time-consuming and long. Users must execute this with utmost care. Otherwise, it can result in the corruption and loss of data. For preventing such a situation, users may use OST to PST converter to successfully convert the OST to PST file format. It's one of the authentic and reliable tool for conversion of OST to PST.

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