How to Manually Start OST Compaction

Method 1: Microsoft Office Outlook 2007

1. Delete any items that you do not want to keep, and then empty the Deleted Items folder.
2. On the Tools menu, click Account Settings.
3. In the list, select Microsoft Exchange Server, and then click Change.
4. Click More Settings.
5. On the Advanced tab, click Offline Folder File Settings.
6. Click Compact Now.

Method 2: Microsoft Office Outlook 2003 and earlier versions of Outlook

1. On the Tools menu, click to select E-mail Accounts.
2. Click View or change existing e-mail account, and then click Next.
3. Click Microsoft Exchange Server, and then click Change.
4. Click More Settings.
5. On the Advanced tab, click Offline Folder File Settings.
6. Click Compact Now.
7. When the compact operation is finished, click OK twice.
8. Click Next, and then click Finish.

Method 3: Microsoft Office Outlook 2010

1. Delete any items that you do not want to keep, and then empty the Deleted Items folder.
2. Click the File tab on the Ribbon, and then click the Info tab on the menu.
3. Click the Accounts Settings tab, and then click Account Settings again.
4. In the list, select Microsoft Exchange Server, and then click Change.
5. Click More Settings.
6. On the Advanced tab, click Offline Folder File Settings.
7. Click Compact Now.

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