Needs an one word change to find the right articles to get started.
Try http://www.google.com/search?hl=en&client=cnet&q=Connecting+Windows+7+to+XP+network
I recently purchased an HP laptop with Windows 7 Home Premium installed.
I am running a home network using a Linksys router to which I have connected a Linksys wireless router. Don't ask me why I just don't use the Linksys wireless router and get rid of the regular router because I already tried that and experienced speed and other connectivity issues. I was able to get on the internet with the new Windows 7 laptop but could not get it to connect or view my other two XP desktops folders or shared printer.
I have another laptop with XP installed and have no problems printing or accessing files on the desktops. I'd like to get the Windows 7 laptop to do the same but have not been able to solve the problem.
Any help would be much appreciated.

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