i was using avira premium suite at that time my browsing was very fast,but now i m using eset nod32 v4 now pages r OPENING in long time,no firewall in eset v4 which i m using,
i m using windows firewall,OPERATING system xp,browser opera 10.10,The first thing I will need you to do is to go to this link and follow the directions precisely. If you can't access the internet with your infected computer you will have to download and transfer any programs to the computer you're using now and transfer them to the infected computer with a CD-RW or a USB STORAGE device. I PREFER a CD because a storage device can get infected. If you use a storage device hold the shift key down while inserting the USB storage device for about 10 secs. You will also have to transfer the logs you receive back to the good computer using the same method until we can get the computer back on-line. If you can't run any step, just jump to the next one. Please let me know how you are doing or have any questions. Initially, I will need the SuperAntiSpyware, MBAM and HJT logs. Please post any logs that you can generate.I don't see that he said he had a virus, just that his browsing was slower with Nod32 as his antivirus.
I had the same issue.

OP, don't know why you no longer use Avira. But my internet browsing speed increased a lot switching to that from Nod32.

Not trying to be an *censored*, I just think his first post was misread.See Slow Computer? It may not be Malware for free cleaning/maintenance tools to help keep your computer running smoothly.