system
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What is the quickest and easiest way for her to upgrade her IE?
… heard of Windows update? ::)… IE7 is dead and IE8 almost is, no need to start a thread about that… and yeah, I understand that you have issues with optional updates ;D
ps: to your last question, if IE7 came with the install (Windows setup) and you upgrade to IE8, then of course you can revert back, but what for ??? 