Help

[supravat paul]

I have a serious problem. I gave my "Pen drive " to a friend of mine, who is using Windows XP. His computer was effected with viruses. As a result my "Pen drive" becomes virus effected. I opened the Pen drive in Linux. I can see those virus effected files but I am unable to delete them. I tried to change their permissions, but it does not work saying an error that the files are read only. How should I delete them ?
Some one please help me.



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