I have recently upgraded my system from windows vista to window 7 Ultimate 64 bit. I have not made any changes to my hardware or software prior to installing windows 7. Today morning when I try to perform system restore due to some reason, I found that system restore did not work. And I get this error code: 0x80042306, 0x80042308. I am using Dell XPS. I did not understand what went wrong. Does anyone have any idea about this error code please let me know as soon as possible. Your suggestion would be appreciated.