Can't install Steam

[Nemix]

I can't install Steam, I get this error:

And same goes for the patch 1.0.7.0 for GTA IV.

And no I'm not installing something else or another setup in the background, I have just Yahoo! Messenger, uTorrent and Nod32 working.

 

[Denz]

restart your comp and try again

 

[FalconFury]

Maybe some dll has be deleted somewhere on your system.

 

[KarrdeKNR]

Weird. Checked permissions? Sometimes windows can be sneaky about that.

 

[DiebytheSword]

Is NOD32 blocking steam from installing? Sometimes AV programs get touchy about installing programs.

 

[Nemix]

Restarted and it worked.

 

[Denz]

heeeeells yeah boiiiiiiiiiiiiiiiiiiiiiii!!!!111111

take that you complicated answerersrssss!!!!