Hello @Anonymous,
Welcome to the Autodesk Community!
To build onto imadhabash post,
After creating your workspace try the following.
The system variable WSAUTOSAVE is the toggle switch for "Automatically save workspace changes." You may create an AutoCAD LISP file that will load when AutoCAD runs and set WSAUTOSAVE to 1. To do this:
- Create a new text file using Notepad and paste in the following line of code:
(setvar "wsautosave" 1)
-
Save and close the file and then rename it to acad.lsp. Be sure it does not end with .lsp.txt after renaming (right-click > properties to see the full file name).
-
Put the acad.lsp file in your AutoCAD program folder or Support folder (e.g., 'C:\Program Files\Autodesk\AutoCAD 201x' or 'C:\Program Files\Autodesk\AutoCAD 201x\Support').
I reference this AKN article: How to have "Automatically save workspace changes" always turned on in AutoCAD
Post back and let me know if this helps.
Thanks. 
Sarah Emmsley
Technical Support Specialist