DataRight OK thank you for the confirmation. I guess my friend use the N edition and not N-1. can you enlarge the picure you have uploaded? does it said Windows 7 Ultimate N-1?
If you type winver in the searchbox it will bring up the window shown in my pic. Click the Microsoft Software License Terms to bring up the EULA. At the bottom you will see 'EULAID:Win7_RM.0_ULTEN1_RTL_en-us'. Thats the easiest way I found to tell what N version it is. I don't think it says N-1 anywhere in the OS?