Virus?

[Renton]

Morning all
I have managed to get a virus or spywear that when my computor boots it immediately takes me to a brouser page trying to get me to buy some stuff, its not like a normal browser page that you can minimise or call up your task bar so I cant do anything about it. I have tried booting into safe mode and my computor just resets.
Im pretty sure if I could get to msconfig I could stop this from starting up but I cant because everything is behind this page.

Is there a key combo that will force this page to minimise or shutdown? I have tried alt tab and alt F4

Ta

 

[Renton]

Thanks for the replys
I cant run any mail or virus programmes because as soon as it boots this page comes up and I can not navigate anywhere.
I didnt try commant prompt in safe mode I just tried booting into safe mode with out any network drivers and it went back to post screen as soon as it loaded, I'll try command prompt when I get home, if this does work what will I need to do?
If I ctl alt del I can choose taskman but it must be sitting under this page and I cant do anything with it

Thanks again for the advice so far