Windows Installer Service Problems?

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I have never ceased to be amazed how many problems you can encounter on a fresh install of a Windows operating system.  This is certainly case in point&

Unable to complete ANY MSI installation.  This means Windows Updates are failing and I can't manually complete installations that I have downloaded locally.

For example:

1. I start an MSI installation
2. I wait an unusually long time&&.
3. Then, this error appears:  
      a. The Windows Installer Service could not be accessed.  This can occur if you are running Windows in safe mode, or if the Windows Installer is not installed properly
4. Application Event Log displays the following Warning:
      a. Event ID:  1015     Failed to connect to server.  Error:  0x80080005
So&how do you resolve this problem?

1. Open a CMD prompt
2. Msiexec /unregister
3. Msiexec /regserver

That's it!  Retry the installation.

Here is the Microsoft KB concerning this crazy issue:  

If the above solution doesn't work&go to that KB article.   The article lists four other ways to resolve the problem.
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