I am having HP comapq 6720s laptop. Its working absolutely fine and smooth without any problem. at that time of purchasing I got windows vista operating system on laptop. this operating system is also compatible with this but as I know windows 7 is more better than windows vista so I planning to upgrade my operating system vista to windows 7 but I read in many article that it is more difficult to upgrade to windows 7 is that true? What should I do for upgradation?
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