I dont know about messing your system up..But what it does do if it detects a crack or u use all 30 and try and install another version is rewrite your permission policies so u cant install it again<(could be classed as messing thing up abit).But unless u use a feature regular like the utils its pointless keeping it installed.Once u've tweaked,there permanant(unless manually reset through t-xp)so u can just uninstall it after everythings set.
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