The following method requires you to edit the registry.Make a backup of the registry before you perform any edits.

To backup the registry go to Start > run,and type regedit. Click on File > Export and save the file.

To disable Dr.Watson do the following:

Go to Start > run,and type regedit

Navigate to this string:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AeDebug

In the right hand pane you will see Auto which has a default value of 1.

Double click Auto and change the value to 0. Close the Registry Editor.

Dr.Watson is now disabled. To enable it again,just follow the same procedure as above,but change the 0 to 1.