Thread: Slow Computer. Oh noes. What would help?

Lately, my computer has been getting a little slow. I normally keep my computer pretty clean. But over the years some things have snuck in I guess.. maybe it also is the russian sites I came across that instantaneously gave me virus-aids or something, at least my virus scanner didn't like it.

Basically: What can I do to get my computer fast like it was, preferably without formatting

Some things useful to know:

I have AVG virus scanner. The best, free one out there to my knowledge. That doesn't make it the best one out there, sadly enough. Is AVG sufficient?

I have just deleted Sytec -or something- firewall. It was said to be better, and I am sure it is, but I had the feeling to took up more memory then windows' normal firewall. Also, it gave a message every 10 minutes about how 'kernell DLL' or something with 'kernell' tried to access the interwebs. Annoying. Any advice on this subject?

Also, I do know about, and have, stopped some stuff from starting up already through msconfig --> start up. However, far more of the background-programs you see if you press ctrl+alt+del doesn't come from there. I think it is from msconfig--> services. But I don't know what and what not to disable.

Yeaaahhh. Or like any nice programs to clean up my registry?

EDIT: Oh yeah, I also have spybot S&D

Hope someone can somewhat help me. : )

Peace.

~Neruo