skaz :
Your fine. I would choose "clean install" though during installation instead of "upgrade" method. And you will have to choose clean install method if you are going from 32bit to 64bit anyways.
From Microsoft's website,
"When purchasing Windows 7, you can choose either an upgrade version or full version. Both upgrade and full versions include the same features. Upgrade versions require that Windows XP or Windows Vista are installed on your computer before installing Windows 7. Full versions don't require a previous version of Windows to be installed on your computer."
Not sure where to post this but I went from XP Professional the 7 Home premium Upgrade.
All went good and 7 ran smooth. Now I installed a new Mother board and CPU. Now 7 won't boot up.
It give me two options 1) to do a repair, 2) start windows normally. but neither will work.
How can I reinstall 7 Upgrade? I will not boot from the 7 disk.
Should I install XP 1st again?
Thanks.