Windows Add/Remove Programs Tool Does Not Open

To resolve this issue, add the missing registry entries:

1. Click Start, and then click Run.
2. In the Open box, type cmd, and then press ENTER.
3. In the Command window, type regsvr32 mshtml.dll, and then press ENTER.
4. Click OK to confirm that the registry entry has been added.
5. In the Command window, type regsvr32 shdocvw.dll -i, and then press ENTER.
6. Click OK to confirm that the registry entry has been added.
7. In the Command window, type regsvr32 shell32.dll -i, and then press ENTER.
8. Click OK to confirm that the registry entry has been added.
9. Close the Command window.