This setting allows you to modify the maximum number of commands and operations that can be reversed using the Undo function in Microsoft Access 2002.

To change the number of Undo levels, follow the next steps:

1. Open the Registry Editor click on the Start button on your taskbar, then click on Run and type "regedit" and click on OK to start the regedit utility.
    
2. Expand HKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Access\Settings (see picture 1).
   
   

   Picture 1

3. Create a new DWORD value, or modify the existing value, called "Number of Undos" and set it according to the value data above.
    
4. The modifications you made will be in effect after you reboot your PC.