Solved Outlook 2007 PST File Not Operable

April 24, 2015 at 00:14:07
Specs: Windows 7, 3 GB

I have a Windows-7 computer that crashed (hard drive). Good news, I have a full backup of everything. Got new hard drive, Win7 and majority of programs have been reinstalled, and now I'm going through the chore of putting all the data back.

My Outlook-2007 is basically my professional lifeline. I have (2) Personal main (Outlook.PST) file, and it's companion archive (Archive.PST). I have many years worth of transmissions here, and (legally) cannot delete them...thus the archive. Prior to the crash, my Outlook was configured to automatically archive anything >2yrs; thus, I have some 3+gb of data stored in that file. Not a big deal, I've got plenty of drive space, and a workhorse for a computer workstation.

Now the MAIN file...after I recreated my identity...I simply copied in OVER the the new "Outlook.PST" file...and, thus, my "current" mail (and contacts, etc.) are all perfectly intact. However, when I attempted the SAME process (i.e. creating a new Personal folder called 'Archive'), and copied in the backed-up "Archive.PST", I continually receive the error message:

"Cannot expand the folder. The set of folders cannot be opened. C:\__xxxxx___\Archive.pst is not a personal folders file"

What is going on here? I attempted to run that Outlook repair tool that Microsoft provides, to no errors out immediately. Please help! I thought I had a bad situation (the crash) solved by keeping good backups...but if I can't tap the back, what's the use? And, yes, we have jobs ongoing that have 3-4 years worth of communiques, that I *MUST* be able to retrieve. Thank you in advance for your assistance...

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April 24, 2015 at 02:50:59
✔ Best Answer
Go to C Drive> Program Files> Microsoft Office> Office 2007. After doing this you will see the PST files. Right click on it and go to the Properties and then select the Compatibility tab. Click on it to clear down all the Compatibility Mode Check Box. After doing so, click on Apply and then press OK. Restart the computer and your problem is sorted out.

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