[carolehughes]

I posted originally that my kobo needed constant Factory resets, one of the post replies fixed my problem I hope it works for you, I pasted his line into the Calibre option instead of what was there. Thank you ubervexed

Originally Posted by ubervexed
My experience is that certain chars (underscore, and multiple periods) in the book filename triggers the Factory Reset message. Sending a filename that contains these characters to the Touch can be prevented by changing a Calibre setting:

Select Preferences, then Sending bools to devices

Change Save template from {author_sort}/{title} - {authors} to {author_sort[0]}/{id}

This will ensure that both the directory and filename created on the Touch are innocuous.