Solve : i can't reinstall a game because the setup failed and...?

1.	Solve : i can't reinstall a game because the setup failed and...?
Answer» the story goes like this: i tried to install a game. i installed the first CD but when i was asked to insert the second CD the computer didn't recognize it (or something) and the setup failed. so after that, i erased manually (probably shouldn't have) all the files (or so i thought) and tried again. unfortunately, the setup gave an option of UNINSTALLING (instead of installing) and when i press it it says it uninstalled but it didn't CAUSE i still can't install! and the same thing happens VIA "add or remove programs". what do i do?? if you have a solution please specify cause I'm not so familiar that MUCH with COMPUTERS...What game ? Original CD's or copies ?

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