COmputer Tags: Windows 7 Computers Windows Vista Last response: December 11, 2012 1:00 AM in Windows 7 Share jhorgz December 11, 2012 12:26:03 AM I have a laptop with pre installed Vista on it. i upgrade it to windows 7 ultimate. after installation i am trying use the product key of my windows 7 ultimate but it always failed. it says "error code 0xC004E003.... how to fix it? thank you.... More about : computer | E-mail me updates | Report abuse Reply to jhorgz Register or log in to remove austing December 11, 2012 1:00:38 AM If you weren't able to Validate, proceed as follows: 1. Download this diagnostic tool, saving it to your desktop: http://go.microsoft.com/fwlink/?linkid=56062 => WinXP: Double-click on the executable to run the tool. => Vista & Win7: Right-click on the executable and select Run as Administrator to run the tool. 2. After running the tool, click on the Windows tab and then click on Copy (to clipboard). NB: You may want to open a new Notepad file, paste the contents of your clipboard into it & save for future reference. 3. Begin a new thread in the following Microsoft Genuine Advantage forum and paste the results from the WGA Diagnostic Data tool and/or OGA Diagnostic Data tool in a detailed post: http://social.microsoft.com/Forums/en-US/genuinewindows... 4. A troubleshooting specialist will analyze the data and recommend an appropriate solution. | Report abuse Reply to austing Ask the community Post an answer Tom's Hardware>Forum>Windows 7>COmputer> Related ressources: Forum"Reboot and select Proper boot device" ForumComputer keeps 'losing' internet everytime it turned off/restarted. ForumComputer Stuck On American Megatrends ForumWhat DVD burning software will make a DVD to use in non computer players? ForumWhy my computer turn on the switch light is not showing ForumWidows setup could not configure windows to run on this computer s hardware ForumMy computer goes to a black screen with a cursor after it says windows is starti ForumComputer Freezes ForumComputer rig compatibility ForumComputer boots up but cant open a program More resources Read discussions in other Windows 7 categories Configuration Customization Drivers Security Laptops !