Originally Posted by jonny4
HTC and Microsoft want me to Factory reset the phone.
If you have a Zune-Backup restore it without Hardreset your Phone.
After a Hardreset all Backups made before are useless, you cannot restore them.
If you cannot fix your Problem by Zune-Restore you can do a Hardreset as last Option.
After that you can reinstall your Apps with Reinstaller.
So only your SMS, Mails and Mailaccounts are gone. But it should be easy to setup the Mailaccounts. I heard that SMS an Mails can be saved to, but i cannot tell you how to to. Please do a Googlesearch for this.