Hi! Is there a way to recover an unsaved *.txt file that was open when the computer did an automatic restart?

It is not likely due to the file being in memory until it is saved. If you have an "autosave every x minutes" feature* incorporated, some of the file may be still there in your TEMP or TMP directory.

* I use EDITPAD for my text files.
EditPad Lite - Free Text Editor for Windows

Thanks, Dan! I downloaded EditPad Lite.
I should have been more careful wth my editor document...
(I am considering the matter closed.)