How to solve 1402 error (Could not open key: UNKNOWN\Components...) during installing Office?

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Sometimes, during you installing / reinstalling / repairing Microsoft Office, you will get the 1402 error (Could not open key: UNKNOWN\Components...), even run the installer as administrator. If you encountered this error, I suggest that you do not believe some experts and their saying due to they suggest you to change the Windows Registry and / or the permissions, this can only lead into a worse situation.

Right Solution:
Run cmd as administrator and execute the following command:
secedit /configure /cfg %windir%\inf\defltbase.inf /db defltbase.sdb /verbose



Once done, run MS Office installer again, everything was settled. If you know the answer, please ignore this section.
If don't know, please follow me: press <Win> key -> type cmd -> right-click on "Command prompt" app -> select "Run as administrator", like this:



[Reward]   
Tip: we also produced a powerful and popular utilities kit for Windows - WinExt^®, feel free to try it on your PC.