With Windows 7 Ultimate, you should not face the same geographic location limitations that you experienced with Windows XP. Microsoft has made changes to its activation and validation processes over the years, and Windows 7 Ultimate should not give you trouble for using it in different geographic locations.
However, it's always a good idea to ensure that your Windows 7 Ultimate licenses are genuine and properly activated before you travel. This can help mitigate any unexpected issues that may arise while you are in the USA with your laptops.
If you have any concerns or encounter activation issues while in the USA, you can contact Microsoft's customer support to address any potential activation or validation challenges promptly. It's...