no connection due to remowal of adware

hi
i scanned my computer with Ad-Aware and now my connection to internet is messed up. it's not totally out becouse somtimes it will work like normal but efter a while it stops and after rebooting i get a "no or restricted cennection" sign. after several reboots it may work again but only to repeat this.

i have tried winsockfix and it crashes in "resetting ip(or something)". it worked once but didn't help.

i have tried to replace the winsock keys with some from another computer but no effect.

i used lspfix but it said nothing was wrong.

i intalled a new tcp/ip protocoll on my connection.

I've done all theese things becouse i read them on forums and im kind of a noob so i doont really know why i did them.

oh, and the eindows restore has been switched of so i cant use that.

i hope you can help me so i dont have to restore it to like it was when i bought it.

thanks
(and if i dont reply it becouse im going away for a week but i'll read everything when i get back)