Comment 8 for bug 365881

There seem to be different reasons for this (http://www.google.com/search?q=%22no+disk%22+%22exception+processing+message+c0000013%22) including a Worm (http://techrepublic.com.com/5208-6230-0.html?forumID=101&threadID=218605&start=0), so please scan your machine.

This probably happens while Wubi scans all your drives for a CD/ISO, it would help if you could identify the drive that originates this message by looking at the wubi log in your user temp folder as soon as you see the error dialog.