Upgrading

Assuming that you have at least 16GB of available space you should have enough minimum hardware requirements to upgrade to windows 7 successfully. First thing you should is make sure that all or your hardware is compatible with windows 7. Also moving from windows XP to windows 7 means that a clean installation would have to be performed meaning that aside from any settings that are able to be moved via one of the migration tools, it would be necessary to perform a backup of all of your machines in order to keep from permanently losing any important files or documents.

I would run windows 7 upgrade advisors on the system that you are interested in upgrading to make sure everything will run smoothly. Also I would take notes to make sure there arent any compatibility issues if it looks like your hardware will function properly and that many of your important programs are compatible with windows 7 it might be worth it to backup all of your data and preform clean installation of the OS