Hi,

Is there a way to compress the database file that Outlook uses and where would I find this file? I did a SEARCH FOR "*.pst" and could not find it.

For some weird reason lately it is taking longer to access the outlook application to open the email than it use to be.

• Moved by Lanlan HuangMicrosoft contingent staff Monday, July 13, 2015 1:56 AM

Hello,

You may find the following links helpful:

How to compact PST and OST files to eliminate deleted item space in Outlook

Reduce the size of Outlook Data Files (.pst and .ost)

How to Compact the Data File When you Close Outlook

• Marked as answer by chamdan1 8 hours 49 minutes ago

Hello,

You can find the PST File location by following the given below path:

Open MS Outlook >> Click On File >> Data File Management >> Data File Tab >> Select the path  & click on Open File Location.

Short Method to find PST File: Type this path in Run command C:\Users\admin\Documents\Outlook Files

For Compressing the Outlook Data File you can continue with the Eugene Astafiev answer.

Alternative Source: https://curah.microsoft.com/416738/i-want-to-split-my-outlook-pst-file

Thanks & Regards

Clark Kent

• Marked as answer by chamdan1 8 hours 49 minutes ago

You can use Move To Folder option or Archive option to split PST file Follow the steps mentioned here in the article http://www.filerepairtools.com/tips/how-to-split-pst-file-safely/   to decrease the size of PST file safely.