Follow these easy steps
- Locate the .PST file on your hard drive [or copy it over from CD-ROM if that's where it's backed up]
- Right click on the .PST file on the hard disk and select Properties
- Remove the Read Only setting if enabled
Click OK
- Open Outlook
- Select File > Import and Export
- Select Import from another program and click Next button
- Select Personal Folder File (.pst) and click Next button
- Click the Browse button
- Locate the .PST file, select it, then click Open
- Select Replace duplicates with items imported
Click Next
- Ensure that Include subfolders is selected
Ensure that Import items into the sane folder in: is set as Personal Folders
Click Finish