Hey there, First off, im new here. So hi nice to see you and its my first time to use Windows 7 . Anyways, here's my problem. I just reformatted my netbook to home premium , i accidentally pressed the next button thats the time that i should put my product key, and yea its 30 days trial, and im changing the product key . After i put my product key, i had some problem . Here's what it says: "A problem occurred when Windows tried to activate. Error Code 0xC004E003" I keep on trying but it keeps on saying that. Sadly i can't do re-install the software since i accidentally trashed my windows 7 home premium installer its original copy . Haven't seen that its important ohwell i cant buy another one. Anyone can help me on this problem? "A problem occurred when Windows tried to activate. Error Code 0xC004E003" Thanks, Love, Silent 16 Please do some responce out here or send me a mail : firstname.lastname@example.org add me on msn if you want to help me. Send a message first that you came from windows 7 forums. Thanks!!!