Hello Just,
Are you using the latest version of EmEditor? You should see the Start Window where you can click the Restore Previous Workspace button.
If this doesn’t work, please make sure the “Save Only” is selected in Automatic Workspace drop-down list in the Window tab of the Customize dialog box. You can also select “Save, Restore and Keep Undo Information” in the same drop-down list if you prefer.
Thanks,