I was using the trial version of windows 8.1 and downloaded the full version. I had to reinstall office and when I go into outlook all my old email and contacts are gone. Any ideas?
When you upgraded Windows, you most likely lost all of your files from the hard drive. Do you remember clicking to "remove" all files or did you see an option to backup the existing Windows to a new folder?
But were you using Outlook as an exchange server or as a POP server? If it was as an exchange server, you should still have your emails on the online mail server and they should show up in Outlook again once you've inputted the correct settings.
This link from the Microsoft site is for upgrading from Windows 8 to Windows 8.1 but should still provide helpful information - Update to Windows 8.1 from Windows 8 - Microsoft Windows.
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