In the case below, the keyword was expanded to “Registry Key” to help refine the search.
Here we can see that the actual registry keys that failed the validation are shown. One of the common fixes to this error that was found on searching related errors on MSDN, was security related.
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Since this installation was run from a remote drive by accessing it via the admin share. \192.168.1.100f$ and with the machine that had the setup files on it existing in another work group, security was passed to access those files by manually entering an account on the remote machine that could do this.
This is fine for most installations but in this case, the credentials appeared to be used to attempt to alter the registry during the validation rules steps.
However, we recommend that you complete this procedure to verify that the options are configured correctly.