Upgrading from Windows 8 Release Preview to Windows 8

Caution: Upgrading from Windows 8 Release Preview to Windows 8
 
If you wish to upgrade your existing Windows 8 RP to Windows 8 RTM or final versions, you need to be careful. Make sure you have backup of everything you need (software and applications).
 
I upgraded to Windows 8 from Release Preview and my previous installed software are gone. 
 
Check out my experience Installing Windows 8
 
However, your personal files like photos may still be there but I would not take any risk.
 

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