Bump, I need to know how to do this. I may be crazy but I didn't see this in the Zune software.
Like stated above... Your contacts and Calendar are automatically sync'd whe using a Live/Hotmail/Gmail account with your phone. If you format your phone and re-configure it to use the same Live/Hotmail/Gmail account your Calendar and contacts will be automatically sync'd back into your phone.
Now Pics/Music/Videos are done through ZUNE.
First... Since the only way to get Music into your phone is via Zune we will asume you have the originals already on your PC Zune software.
The only issues are the Pics and Videos you take wih your phone.
Zune should have a default setting to back these files to your collection. You can verify this by selecting in Zune the "collection" tab and then "Pictures" and see if you have all your pics there. (Do same with videos)
If not then have phone pluged in to PC, In ZUNE, on the top click on "PHONE" then next to your username(top) click "settings" and on the left menu select "pictures & videos". (verify these settings)
Once everything you need appears in the Zune top tab "Collection" area then its in your PC.
You can now format your phone.
To palce the pics/music/videos back on your phone just drag them into the phone icon at the bottom of ZUNE.
By the Way. in my phone/settings/ "Sync Options" I have them all set to manual... I just like to copy over manually the stuff I want on my phone.