I am using Windows 7 from past 4 months. I have begun to face very strange problem after I tried to create system recovery disk after using ‘anytime upgrade’ from Home premium to professional. It simply prompts that ‘The parameter is incorrect (0x80070057)’. I was able to do the same for the home premium just before upgrading from Microsoft website. I am asking to all of you if you can light shed on this particular situation to solve the matter. I am hoping that you will help me to solve the matter. Thanks in advance.