I discovered today, after a great deal of snooping, that dh and I are both 'administrators' on the computer. And as such, as I found this out clearly before he had the chance to alter anything himself, I can change his status to 'regular user' and therefore as he is no longer an administrator he can't change my status or any of the controls.
I was then able to deactivate his password and log on to his desktop.
I couldn't find any pictures anywhere, but I did open his Internet browser and have a look at his bookmarked pages. Apart from the banking, shopping, etc there were loads of porn sites. Chat rooms, picture galleries, etc.
I deleted them.
Then I went into my own desktop and went online and found a parental control website. I downloaded the software. I logged back on as him and tried to look up some porn and it automatically told me the site was blocked. I clicked on some more bookmarked pages that I'd missed previously and it wouldn't show them either. Result.
So I'm now the only one who can access the controls on the computer, and I've blocked any access to adult sites.
I've probably just forced him to go out and buy a secret laptop, haven't I?
On the negative side, the Internet doesn't work. I'm not sure what I've done. It worked after I downloaded the software because I was able to go online and check it worked. AVG queried it so presumeably if anything bad had tried to download, it would have caught that too?
He's sitting here beside me now as I type this on my phone. I haven't really said much to him, apart from general discussion about the dc's, so presumeably he thinks we're alright now.
Can't wait for him to try and look at his porn.