Air will not sucessfully download/install

HI! Ive been sat trying to download and install air for over 3 hours. I've googled and tried all sorts.

i need to download it for cricut craft room. That software tried to download it as part of their required items which fails - you get to download it, accept t&c and starts installing but stops half way through about failed something and contact the administrator.

its a home laptop. Ive chrcked and admin is set for account etc.

same thing happens if try snd download site just from adobe site too.

THis is the sort of error i see

Adobe AIR installation on Vista. Message: 'An error occurred while installing Adobe AIR. Installation may not be allowed…

ANy help? Ive done updates for windows etc, tried a fix thing but still doing it