How to Repair Large Outlook 2007 PST on Windows 7 [Solved/Closed]

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paulmay247
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Hello,

User running Windows 7, with Outlook 2007, 20 GB PST.
User has two email account, 1 may be an IMAP, 1 may be POP, or both can be POP (I'll check if necessary)
No Exchange accounts.
Outlook wouldn't start, so I used SCANPST to repair (took hours, of course). Outlook ran slowly, but now is getting stuck again.
Ran Windows 7 Error-checking, with "Scan For and attempt recovery of bad sectors".
My thought was to:
Restart with startup items turned off.
Upgrade to Office 2013
See if Outlook will open the PST
Run SCANPST again
Does SCANPST compact the PST ?
Should I compact after running SCANPST ?
If I get Outlook Running, should I move old messages to separate PST files, a year at a time?
Any 3rd party repair tools that I can use?
Thanks.


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Run Windows 7 Error-checking, with "Scan For and attempt recovery of bad sectors".
This means the file was physically damaged.
If I get Outlook Running, should I move old messages to separate PST files, a year at a time?
I use Archiving. I have email back to 1996 and only a 1 GB main PST file. You can move emails to separate PST files, but Archiving does this automatically.
The maximum size of an Outlook 2007 file is 20Gb; the maximum size of an Outlook 2013 file is 50Gb. So the newer version can handle more email.
https://support.microsoft.com/en-us/help/982577/the-file-size-limits-of-pst-and-ost-files-are-larger-in-outlook-2010-a
However, very large PST files tend to slow down Outlook and Archiving is one excellent way to prevent issues.
Look at here also please
https://answers.yahoo.com/question/index?qid=20140901110014AABteIa
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Create a new Outlook profile and PST.

Once in Outlook go to File > Open

select the 20GB PST file and before you press open, press the arrow to the side of it and do open and repair.