Touch Format the ereader?

I can't seem to connect my Kobo Touch to my computer because the computer wants to format the reader first. If I say no, it wont recognize the Kobo Touch. If I say yes to formatting, it says it "Window was unable to complete the format".

Either way, my computer wont recognize the Kobo Touch. I've tried three different computers, downloaded the Kobo Desktop to each and still no luck.

Help.....

Brenda