Upon reviewing the Components hive again, it appears that there are many missing keys.
The quickest solution may be to perform an in-place upgrade (repair install), then use the convenience roll-up and latest cumulative update to get the system up to date.
To perform a repair installation of Windows 7, follow these steps:
- Close all the running applications.
- Insert the Windows 7 installation DVD in the computer's DVD drive.
- In the Setup window, click Install Now.
Note If Windows does not automatically detect the DVD, follow these steps:
- Click Start, and then type D:\setup.exe in the Start Search box. (if your DVD has a letter other than D, use that instead)
- In the Programs list, click Setup.exe.
- In the Setup window, click Install Now.
- Type the CD key if you are prompted to do this.
- Select the operating system in "Install Windows" page you want to Upgrade.
- Click Yes to accept the Microsoft Software License Terms.
- On the Which type of installation do you want? screen, click Upgrade.
- When the installation is complete, restart your computer.
Let me know if this produces an error message.