Internet is being..well stupid

My internet is being horribly slow ( even lower than the usual 27 kb/s)
and I also can't open windows live Emails and mum needs them.
It seems the email issue is only in firefox as email works in chrome, but chrome is being dodgy and won't open web pages 3/4 of the time.
are there any programs that can fix this because mum is super angry at me...

 

Have you checked if there are any virus in your computer?

 

I have done a full virus scan and i got nothing.
I also unintalled avira because kerpersky told me to then the computer crashed when I used kapersky T_____T
I really need a decent antivir

 

If your internet plan has a monthly download limit which has been exceeded, your ISP may have limited your speed.

 

Hmmm...... contacted your ISP yet?

-What version of firefox and chrome are you using?

 

the latest for both, and I have an "unlimited" plan which says if I go over 10GB I get capped to 64 kb/s.
I have a constant speed of 27 kb/s *crys*

 

Yeah, so you might've been capped.

 

But my speed is lower than the capped speed for the whole month.
also, emails now work in firefox, thank god for hijackthis.
net is still a bit dodgy though.

 

There's an eightfold difference between kilobits and kilobytes, not to mention the difference between theoretical and practical speeds.

 

uh..thanks?
just to tell you guys, Hijackthis fixed everything now, usefull program but you have to be careful what you select for fixing.
thanks for the help