microsoft outlook 2010 multiple users?

we are 4 people checking separate webmail (no exchange server) accounts under one user on a pc with Microsoft outlook 2010.  

how can we each see our emails, contacts & calendar without seeing the others?  

I set up the 4 accounts with individual password protected pst files. unfortunately the only way to open outlook now is the default user always has to logon (thus showing their folders and emails :-( ).  if they don't logon first it does not open and shows this message (see enclosed)
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Is there a particular reason each person does not have their own individual account on the PC?  This would resolve the issue.

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StewartGilliganAuthor Commented:
they share many files on desktop etc
OK.  If you don't want individual user accounts with shortcuts to the file locations, then my suggestion would be to remove the email account password(s) in Outlook.  Each time the user opens Outlook, it will prompt them for their password.
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Spike99On-Site IT TechnicianCommented:
Have you thought about moving the shared files to a public folder on the PC or to a network share? Separate user accounts is really the way to go to have a hard separation between the files & settings for each person.

But, to resolve that issue with the Outlook error, have you tried resetting the navigation pane?  usually that "cannot open the Outlook window" indicates an issue with the Navpane file. that's an xml file buried in the user's profile folder, which I believe is located in:  in C:\Users\%username%\appdata\roaming\microsoft\outlook\EmailProfileName.xml.

There's 2 ways to deal with that:
1.  Either delete or rename the XML file (rename it to something like Outlook.xml.old)
2.  Reset the navpane by launching Outlook with the "/resetnavpane" switch. You can do that by typing this command on the RUN line or at a command prompt:
     "C:\Program Files\Microsoft Office\Office 14\Outlook.exe" /resetnavpane

Getting back to the Outlook sharing question: instead of using 1 email profile for all users, did you set up a separate email profile for each user?  Also, I agree with TropicalBlend, get rid of any saved passwords in Outlook to force them to put in a password to open their email.
StewartGilliganAuthor Commented:
guess separate users must be the answer.  thanks
StewartGilliganAuthor Commented:
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