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There's a simple way to reverse the compressible encryption of a pst file.

How can I reverse the compressible encryption of a pst file?

Within Outlook you should be able to simply select No Encryption for PST in its properties. If that doesn't work, then I'd simply create a new PST with No Encryption, and copy the contents of the first into the second.

Article C2105 - July 8, 2004

Leo Leo A. Notenboom has been playing with computers since he was required to take a programming class in 1976. An 18 year career as a programmer at Microsoft soon followed. After "retiring" in 2001, Leo started Ask Leo! in 2003 as a place for answers to common computer and technical questions. More about Leo.

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"Within Outlook you should be able to simply select No Encryption for PST in its properties."

Yes, you should, shouldn't you. But you can't. So, as an 'answer' that comment isnt very helpful.

Posted by: John at September 19, 2011 5:53 AM
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