Setup corrupted?

i uninstalled cf, trying to reinstall. But I cant run the setup.
Details : when I double click, right click, or try to delete CrossFire_Setup_v1052.exe, windows explorer freezes and crashes. Note that:
1. I''ve downloaded a second setup, same problem.
2. I''ve runned ccleaner, doesnt fix the bug.
3. Trying to delete the file with cmd.exe and it says access refused, evn though i have all the rights on my computer.
Maybe its a corrupted file? but that means that both of the setups i have r corrupted.
Please help?