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My inbox was reported as full by the ISP. I copied all the messages from the inbox and pasted them into a Personal Folders folder after I had created one (Question number one: Why was it missing?) There was about 1300 messages. They copied and I tried to access the folder. It just says Loading... and nothing happens. I tried to restart Outlook and the computer but nothing helped to fix the loading issue. I searched the web for repairing the datafile and tried to do it with program called SCANPST.EXE, found in the folder C:\Program Files (x86)\Microsoft Office\Office12. It found seven folders and the 1300 messages in the file. Second question: where were the seven folders got from?

So it seems all my messages are in the pst file but Outlook won't load them. How do I fix it?

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Was this POP3 or IMAP? Did you alrady have a .pst file or an .ost? Or neither? – Dave Nov 20 '12 at 13:41
It was an IMAP account. What do you mean by having already a .pst file? If you mean the account, yes, if the personal folders file, no. – MikkoP Nov 20 '12 at 13:43

You asked why your .PST file was it missing - the answer is because you had an IMAP - all the data is stored on the server.

Copying from the inbox to a .PST file has moved your emails from your 'main account'. We need to just attach your new .PST file as a data file.

These instructions are for Oultook 2010 but should be very simlar: Open File (or Windows logo at top left of Oultook) -> Account settings -> Account Settings. Now click the Data files tab. Click Add - browse for your .pst file and then click OK. This will have added to Outlook (but this remains an offline version).

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I meant the entry exists in Outlook, but it's not accessible. It says "Loading..." – MikkoP Nov 20 '12 at 17:29
Open task manager. See how many agents.exe are running. Close all and then try. If this helps I will post a fix. – Dave Nov 20 '12 at 19:34
I wasn't able to find such process. I started Outlook in safe mode (not sure what had happened, but it said something was wrong and I selected to start in safe mode) and then I was able to access the mails immediately. – MikkoP Nov 22 '12 at 13:53
I posted the correct solution which was causing the problems in my case. – MikkoP Nov 22 '12 at 14:11
up vote 0 down vote accepted

There was a problem with an add-in. I removed it and it started to work. The remove process was needed to be done safe mode because otherwise Outlook crashed.

The problematic add-in was Microsoft's SMS add-in.

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