Need to Export Emails, Contacts, Calendar into a clean ver of Outlook

I downloaded and ran AVG PC Tuneup and it cleaned up (by deleting) about 11,000 windows files and other files, as well as 'cleaned' registry keys, etc. Their customer support has been pretty useless and my laptop running win 7 has so many issues that I plan on doing a restore to the original image delivered 2 years ago. Windows backup shows my last backup as Sept 2013 - though I thought it was supposed to back things up weekly.

That being said, in Outlook 2010 (which I have the CD for) I have 3 mail accounts with lots of emails and contacts, as well as Calendar events that I would like to export and then import into a clean version of Outlook. (Note that the contacts may also be part of groups, etc. that I would like to keep intact). I have seen online info about exporting and creating a pst file for emails, but it seems that contacts and the calendar might be separate. I just want three files that will pull back my original folders, the emails in the folders, my calendar, the contacts for those accounts (separated contacts for each email accnt and any groups that they might be in), etc. Is there one function that will do this? Is this just a simple export to a pst or ??? I don't want to lose any data so want to do it right the first time.

Any input as to how I would do this would be greatly appreciated.

Thanks.

last recover point is Sept 2013 - and it indicated that I would loose data from Outlook 2010 and other programs, etc. I would think that starting from scratch would insure all is clean, but if I return to the 9/2013 image, I would still like to export ALL emails, Contacts, Calendar etc as they exist now because the 2013 data is way out of date.