Resolve the OST file too large error in MS Outlook

Microsoft Outlook is one of the most effective and widely used email clients. It uses two types of files i.e. OST and PST. Both these files have their own importance in the normal functionality of Outlook. If any of the two files get damaged, Outlook becomes obsolete and inaccessible to the user. 

OST i.e. Offline Storage Tables are the files which function in offline mode. They store all the user mailbox database i.e. email, contact, calendar etc. in offline mode. The entire database is synced with the exchange server when user go online. These files make users work in offline mode and make the work of the user easy.

PST i.e. Permanent Storage Tables are the files which can't be used in offline mode like OST. They store all the users' mailbox data for the POP3/IMAP account. They store all the mailbox data including email, calendar, event, contact, journal, to-do list etc.

Sometimes, some frequent errors occur in both OST and PST files. One such frequent error is OST file too large error in MS Outlook.

In general, entire mailbox data pile in the OST file since the user account has been created. When it exceeds the limit of OST file size, the Outlook starts to become inaccessible and sluggish. The oversized OST file contains following components- 

• Shared folder with a mailbox that is additionally added.

• Favourites.

• Mailbox content such as emails, to-do lists, calendars, contacts etc.

We can resolve this OST file too large error by using different manual approaches. If manual workarounds don't work, we can also try some third-party tool for this.

• Disable all the Add-ins installed

• Reduce the size of OST file for compacting mailbox data

• Auto-archiving OST file data

If none of the above methods is able to resolve the OST file too large error, you can go for a third-party OST to PST converter solution to fix the OST file too large error as there are some limitations with the manual methods. Manual methods are useful for some users only but not for all. By using a tool, users can easily convert OST to PST file format.

From the above words, it is clear that using manual methods we can resolve the OST file too large error but manual methods are quite tedious and lengthy. So, sometimes using a professional software work out. But, users can have a look at manual methods too as they are also helpful and save your money.

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