I'm not sure where the autotext entries are offhand, that's why you rename
it instead of deleting until you see if it is the solution. If it isn't,
delete the new one and rename the old. if it fixes the problem, then figure
out how to move things stored in it that you don't want to recreate.

The easiest way to find it is using search - choose the advanced option to
search all hidden files and folders, and system files, and search the
windows drive (usually c:)