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Click on the Data Files tab, select the data file to be compacted and click Settings.In Outlook, click on the File tab and from Account Settings, select Account Settings.Open folder list view, and in Navigation pane, right click on the folder, click Deleted items and click Empty folder.Delete those items which are not required further.Reducing file size might help in improving Outlook performance provided that user has deleted a number of items. Click Empty and delete items from Deleted items folder.Ĭompressing Outlook Data File: OST file size can be reduced using the In-built utility in Outlook.You can move older items in the mailbox to an archive folder by clicking on the AutoArchive option.Click on the File tab>click Cleanup Tools>select Mailbox Cleanup.To archive the file, steps are given below. Archiving OST file may prevent your OST file file from crossing a predefined size limit. You can change archive OST file location in your system. Unselect all the Add-Ins that are currently not in use or non-functional and click OK.Īrchiving OST file data: Archiving OST file data might reduce OST file size and clear some space occupied on the server.Under Manage option, select COM Add-Ins and click Go.
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OST file contains all the data you have generated or received since the account is activated on Outlook. Download trial 100% Secure How OST files get oversized?
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