(1th Way)Then if you wanted to reinstall completly your JJ2 versions , you must use Controll Panel> Uninstall programs (in Windows 7 is just "Programs") and you can uninstall both versions but
they don't exists cuz you clean them with EasyCleaner .
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(2nd way) You can install JJ2 TSF or 1.23 in the other drive (D) .

And if both ways don't works , then you got an JJ2 conflict versions !