I have run Steam after purchasing 2 games from DVD (and a pack from Steam/Valve store) successfully through several hard disk formats, but prior to my last one, a week ago, I had some issues.
I made sure, like an iTunes Authorized Computer, of sorts, (you only get 5!,) to de-authorize all computers on Steam.
However, this time I disabled Steam Guard Account Security (the one they say isn't recommended, by the green shield / VAC Status.) Now, when I log into Steam or it starts-up with Windows, no matter what...
if I click Security, check the box to enable it, it just says something to the effect of Steam could not process the reqest / please try again later.
I've tinkered w/ all settings and they haven't responded.
Any ideas? Thanks.