How to Turn On the AutoArchive feature for Outlook 2010 and later versions:
Click the File tab, and then click the Options tab on the File menu.
Click the Advanced tab.
Click AutoArchive Settings.
Click to select the AutoArchive Every check box, and then type a number in the Days box to specify how frequently the AutoArchive process runs.
If you want to be notified before the items are archived, click to select the Prompt Before AutoArchive check box.
In the Default archive file box, type a file name for the archived items to be transferred to, or click Browse to select from a list.
Click OK two times.
For Outlook 2007 and Outlook 2003:
On the Tools menu, click Options, and then click the Other tab.
Click AutoArchive.
Click to select the AutoArchive Everycheck box, and then specify how frequently the AutoArchive process will run by typing a number in the days box.
If you want to be notified before the items are archived, click to select the Prompt Before AutoArchive check box.
In the Default archive file box, type a file name for the archived items to be transferred to, or click Browse to select from a list.
Click OK two times.
Now that you have turned on the AutoArchive feature, you must set the AutoArchive properties for each folder.
Important The Outlook Data (.pst) file that you choose as the default archive file must be located on the local computer. The use of networked .pst files is only supported with Outlook 2010 and under very specific conditions. For more information about the limits to using .pst files over the network, click the following article number to view the article in the Microsoft Knowledge Base.
How to Set the AutoArchive Properties for a Folder
For Outlook 2010 and later versions:
Method 1:
Select the folder that you want to AutoArchive.
Click the Folder tab, and then click AutoArchive Settings.
Method 2:
Right-click the folder that you want to AutoArchive, and then click Properties.
Click the AutoArchive tab.
To set the AutoArchive properties for this folder, click to select the Clean out items older than check box.
To specify when the items must be automatically transferred to your archive file, type a number in the Months box.
To specify a file for the archived items to be transferred to, click Move old items to.
In the Move old items to box, type a file name for the archived items, or click Browse to select from a list, and then click OK.
For Outlook 2007 and Outlook 2003:
In the Folder List, right-click the folder that you want to AutoArchive, and then click Properties.
Click the AutoArchive tab.
To set the AutoArchive properties for this folder, click to select Clean out items older than.
To specify when the items must be automatically transferred to your archive file, type a number in the Months box.
To specify a file for the archived items to be transferred to, click Move old items to.
In the Move old items to box, type a file name for the archived items, or click Browse to select from a list, and then click OK.