Problem installing downloaded programs

#1
Operating System: Windows 7 Home Premium

I recently got this Samsung R440 laptop and I've been having trouble installing downloaded programs, (ex. AOL IM, iTunes).
Itunes won't even appear when I run the installer. AOL will say "NSIS Error: Error Launching Installer".

I've tried numerous things: run as admin, cmd.exe (force install), and changed .exe into .msi. I'm wondering if this may be a problem with the registry, however I've even used Registry Cleaner with no luck.

Does anyone have a solution? Do you need to look at my cmd.exe (/ stat)? hijack this? anything else?

Thanks.
 


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