Here are some solutions to common problems with Set Program Access and Computer Defaults.
To change these settings, you must be logged on to your computer as an administrator.
The default programs selected in Set Program Access and Computer Defaults apply to everyone who uses your computer. To specify different default programs for different users, see Change which programs Windows uses by default.
In order to appear in Set Program Access and Computer Defaults, programs must be registered in the Windows registry. Typically, programs register themselves during installation.
If your program does not appear in the list, it has not been registered and cannot be set as the default program using Set Program Access and Computer Defaults. For assistance with this program, contact the manufacturer of the program.
Software manufacturers determine how their products work with Set Program Access and Computer Defaults. Some non-Microsoft programs might continue to show icons on the Start menu and elsewhere even if you clear the Enable access to this program check box.
By default, the feature opens with Custom selected.