Missing privileges for registry key

I'm trying to use the program "Dragon Tag", where the program will start MS-Excel, and here put an add-in into the menu. However, I get the below error, where I seemingly do not have the needed privileges. Tried to remedy this without succes, but then I tried to run the program being logged in as the administrator, but got the same error. If the administrator cannot do this, how should any other user then?

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Dragon Tag cannot verify the required Word/Excel configuration or adjust it (if required)
because your user account does not have the privileges to read or update the registry key HKEY_CURRENT_USER\Software\\Microsoft\\Office\\Excel\\Addins\\DTStartupShim.Connect.

Adjust your system's security to allow this access for configuration verification and adjustment and then restart Dragon Tag.
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OK
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Try and install Dragon Tag as administrator.

Right click the installer, Then select run as administrator.

Thanks Braddersz,
That I have already tried without success. Therefore I went to the administrator account and tried to run the program from here just to find out that the administrator didn't have privileges either. And then I don't understand privileges anymore