Error 1402 Could not open key UNKNOWN\Components\Verify that you have sufficient access to that key or contact your support personnel

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Problem description

We get the below error when trying to install or uninstall inSync Client on a Windows machine.

This is a machine-specific issue and can happen if the user does not have permission on the registry:

Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\139C3899EB73E6C3DA23B8E687B98618

Note: This part " S-1-5-18\Products\68AB67CA7DA73301B744CAF070E41400 " may be different in your system.

Install the application with administrator rights.
If the issue persists, then provide full control permission to the affected registry keys.

Note:

As an example, the screenshot shared below, identified in yellow for the first part of the component key and in red the second component key: