virus on my computer?

I recently had a virus on my computer which I thought I had removed with AVG, malware removal and adware removal but now my computer is worse than ever. I tried to download norton anti virus and it will not let me download it or anything else for that matter. Now it is prompting for me to choose an application to open anything-for instance the internet and when I click on the appropriate program then it says that the application is not found. Did I erase these applications or is it the virus that is doing this? How can I find this info out and work through this to get my pc running again? Please help...I am a full time student and this is killing me as far as getting my work completed! Any info or expertise is greatly appreciated!

I have window xp...

 

Hi madams and welcome to WindowsBBS

Please read this and post requested logs in the Malware and virus removal board.

NOTES:

When posting the logs ensure word wrap is switched off (in notepad Uncheck Format->Word Wrap) as this makes them difficult to read.

Be aware that only Malware analysts will advise and they are often busy. Your post will be taken on a first come first served basis but it may take a while before you receive a reply.

Include a link to this thread if you can.