Open Question: cant open links on my computer?

i had to free up space and did this free up space thing . its in add or remove window components so i pushed ya since the computer recommended it but since i havent been able to open links like in emails. and you know how some things you push an arrow button and scrol down choosing something. i cant do that , well i can but not the right way that you should be able to by just using your mouse. enough said help? what did i erase how to add it again? im pretty sure its something in windows components