Some applications in Add/Remove Programs list are missing Change and Remove buttons?

When you open Add/Remove Programs applet and click an application entry, you may notice that the Change, Remove (or Change/Remove) buttons may be missing, thus leaving only the application name entry there. Here is a method to make Windows show the Remove, Change (or the Change/Remove button together) buttons in the listing.

Go through the following steps to resolve the issue.

• Click Start, Run and type REGEDIT. This starts the Registry Editor. Navigate to:
  HKEY_LOCAL_MACHINE
  \SOFTWARE
  \Microsoft
  \Windows
  \CurrentVersion
  \Uninstall
  \

• In the right-pane, do the following:
  Double-click NoRemove (REG_DWORD) and set it to 0
  Double-click NoModify (REG_DWORD) and set it to 0

If NoRemove is set to 1, the Remove button will be unavailable
If NoModify is set to 1, the Change button will be unavailable