My Computer is running very slow someone help?

I have AVG antivirus , Spybot S+D , Ad-Aware and AOL spyware protection. I have scanned and when i first did i had something like 27,000 files infected with a Trojan Generic virus. Now it says i have deleted them all but i still have many problems for example:

-My pc is running extremley slow.

-My disc drive does not recognise any CD's.

-My programs freeze , and turn to 'not responding'.

I have already tried to defrag my drive , i have scanned the life out of it and supposedly deleted everything. But still detected by my AOL is something called Abetear A adware and i wonder if this is slowing my PC greatly. I would be greatly apreciative if you could help , Thankyou.

My Computer is running very slow someone help?hijackthis

Slow Computer? Check here first; it may not be malware

http://www.castlecops.com/t175258-Slow_C...

Malware Removal Guide

http://forums.majorgeeks.com/showthread....

I Got A Virus Or Trojan!

http://forums.majorgeeks.com/showthread....

How to clean an infected computer

http://forum.grisoft.cz/freeforum/read.p...

How to Protect yourself from malware!

http://forums.majorgeeks.com/showthread....

Malware Removal - Downloads Page

http://www.malwareremoval.com/downloads....

My Computer is running very slow someone help?malware