Well! AutoSaver might be the answer. It is a handy, portable tool that can automatically save the file on which you are working.
It works on all applications that support the hotkey CTRL + S and save your work after an interval of time (10 sec, 1Min……10Min) that you can set.
Using AutoSaver is very simple. Download and run it (no installation needed, but .NET Framework 3.5 required for Windows XP)
Click the floppy icon appears in the system tray, then choose the save Interval from the list and Hide button to Hide the tool.
You can free download AutoSaver at source