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Is there any way to "restore" a .pst (Outlook Personal Folder) or .ost (Offline Folder file)?

Is there any way to "restore" a .pst (Outlook Personal Folder) or .ost (Offline Folder file)?

I have Microsoft Outlook 2007 installed and use IMAP for all my mail accounts. When I updated to Windows 7 I had to reinstall Outlook and thus download all the headers again. I ended up downloading everything again, but I would want to prevent this in the future.

Asked by: Guest | Views: 53
Total answers/comments: 3
Guest [Entry]

"I have had success with two different methods:

Method A

Save your pst/ost files (copy to a safe place via windows explorer)
Re-install Outlook and set up the account, but prevent it from downloading anything.
Note the location of the pst/ost files for the new Outlook installation
Close Outlook
Via explorer, replace the new installation's pst/ost files with your saved ones
Restart Outlook

Method B: Also I have used the previously mentioned Outlook import feature:

File > Import and Export > Import from another program or file > Personal Folder File (.pst) > locate PST/OST > Import

As for the difference between PST and OST files:

OST files cache the files from the exchange server; they are ""copies""
PST files exist only on one computer; they are not stored on the Exchange server"
Guest [Entry]

"You can add PST files right into an existing Outlook configuration.

For Outlook 2007:

Tools / Options / Mail Setup tab / Data Files...
Then press the ""Add"" button, choose between the new format PST or the old 97-2002 format.
Then browse to where your file is located.

It should show then in the folder view of Outlook.

I also create local PST files for archiving ""stuff"". I then move the PST files when I get a new system, it's very handy. There are some Outlook systems that have policies that prevent creating PST files. Hopefully you won't get involved in that."
Guest [Entry]

This project seems to work perfectly: github.com/mkorthof/ost2pst . No restrictions like all the other commercial tools that a Google search turns up.