I take it, like any teenager, Windows says nothing, no error messages?
If so then I suspect malware damage. Tell us about your malware protection regime. Also, which Windows Operating System is this? Is it fully updated with Windows updates?
I would start with Grif's advice on malware removal in his post here;
You may want to try downloading and installing on your own computer, but if not, do what Grif says about downloading the software on another computer.
OK, I have had it with IE so decided to go ahead and switch to Firefox. Only, I can't. I download and then try to open it to install and ABSOLUTELY NOTHING HAPPENS. It is like an insolent teenager (and believe me I have enough of them around here) who just looks at you like you are invisible. Help please.