avoid using flash drives & cd's ...
I'm using my net-book without any anti-virus ...
Just follow these tips...
1- Don't directly open up flash drives & even your Disk Drives... use explore instead...
2- See the attached Image... Right click in the folder & goto view & then select "Details"...
This will change the view of your folder in details... While opening any file (even folders) you should look at the "Type" column... if there is "File Folder" you can open it but if there is "Application" you should think about it that if it's secure to open that file or not...
There are some worms that has icon of file folder but the details view will show "Application" in front of them , you should just simply delete them...
