vista tidak bisa download file exe

pernah ngalamin ga pas mo download file exe di windows vista lewat browser firefox , IE and browser2 laennya di block muncul kek gbr icon disamping ? padahal downloadnya dari situs terperceya loh semacam adobe flash player , mozila, hiks...
beberapa hari sebelumnya sih gpp ,fice2 ajah download macem2 file ^__^
stelah sedikit searching2 di google disuruh :
"Launch Internet Options from Control Panel. Click the Security tab. Select the Internet zone. Click the Custom Level button. Scroll down to the Miscellaneous group. Find the item "Launching Applications and unsafe files". Is it set to "Disable"? Then change it to "Prompt" and click OK."
dah jalan lagi deh bisa download file exe lagi,...
kira2 kenapa yahh....