Cant install rosetta stone

I cannot get around this and cant find anything on google anyone else had this problem? I installed a older version of Rosetta Stone a few Weeks back and must not have removed it properly b/c when i tried to remove it from control panel it wouldnt let me…i went in and deleted every single file I could find and now that its out of my list of programs I get this error every time…I think it may have to do with registry of some sort but idk how to get it to install
Answer #1
i know that playing around in your registry for anybody not knowing what to do can be dangerous, but if its not in tha add/remove programs list, then its what i would do. so go start then type in regedit, then if your on windows 7 or vista, click o.k to allow admin rights, then once your in there just go to top of toolbar, click edit, then find, that will open up a small window, then type rosetta stone in the search bar, then it will find any instances of it on the right pane. so delete all it finds on rosetta stone. keep going back to edit and find, until it comes up with message finished searching through registry. and it should then clear out any remaining files left over. then click o.k
but like i said if your not sure about playing around in your registry then please leave alone. but if your brave then try what i said, then try loading rosetta stone again.
anyway hope this helps
Answer #2
Try Revo Uninstaller and see if it gets detected there.