PST file management is always a matter of deep concern for Microsoft Outlook users. Outlook users may experience some common problems while working on their Outlook application. To manage Outlook PST files is the most challenging issue for Outlook users.
- The Outlook PST files are not immune to corruption. The main cause behind PST corruption is its oversize. Outlook PST file has a definite size limit. An ANSI PST file has a size limit of 2 GB and a Unicode PST file has a size limit of up to 20 GB. ANSI is the default file format of those PST files which are created in MS Outlook 2002 and its earlier versions. While Unicode is the default file format of those PST files which are created in MS Outlook 2003 and its later versions. You can store up to 2 GB of data in an ANSI PST file. Beyond this size limit, if an ANSI PST file stores more data, then chances for its corruption become high. The same problem can be experienced with a Unicode PST file. A Unicode PST file can store up to 20 GB of data and in Outlook 2010 it can store up to 50 GB of data. Though the size limit is more than enough to store data; however, it may be exceeded sometimes or become corrupted. To prevent corruption in Outlook PST file due to its oversize, you can break your PST file into multiple smaller parts.
- An oversized PST file can also be compressed by reducing its large file size. By reducing its file size, the PST file becomes smaller and easily manageable.
If PST files are oversized, then you may face problem while opening them. An oversized PST file takes a lot of time to be opened in MS Outlook or sometimes it may not open. Your Outlook application may hang or work poorly if you have some oversized PST files.
If you have multiple Outlook PST files, then you must face problem while managing them. A large number of files are always very difficult to handle and manage. Sometimes these files may get misplaced somewhere or deleted (accidentally). To view these files, you need to open them one by one, which will take surely enough time. Or sometimes you need to share them over the network or Exchange Server. By uploading the files one by one takes a lot of time. For all these situations you have a better option. You can combine all multiple PST files into a single file, which would be easy to manage, easy to share and easy to open in Outlook.
How to combine multiple PST files of MS Outlook 2010 (my current Outlook version)
1. Open your MS Outlook program.
2. Now locate all those PST files which you want to merge in the navigation pane.
3. Create a new PST file. Click on New Items, point to More Items and click on Outlook Data File.
4. “Create or Open Outlook Data File” window will appear. Give a name to this new Outlook data file and click on OK.
5. The new Outlook data file or PST will be highlighted in the navigation pane.
6. Now click on File tab > Open > Import. “Import and Export Wizard” will appear.
7. Select “Import from another program or file” from the list and click on Next.
8. Now select file type to import from. Click on Outlook Data File (.pst) and click on Next.
9. Click on Browse and select the file to import. Check the box “Do not import duplicates” and then click on Next.
10. Select the folder to import from. Check the box “Include subfolders” and “Import items into the same folder in”. Then click on Finish.
By using this above method you can easily combine your multiple Outlook PST files into a single file. This may take enough time in combining PST files as you have to perform each and everything manually. Other than this there is one more option for combining multiple PST files, which is much better and effective than the above manual solution.
Please refer to link: http://semnaitik.wordpress.com/2013/06/19/how-to-combine-multiple-outlook-pst-files-into-a-single-file/