Unable to hotfix - Microsoft.Web.Administration

Hi

I have downloaded Kentico (v10) fresh from the Portal and ran the installer to create a blank portal project on my local machine. My local machine is Windows 10 Pro 64bit. If I try to run the hotfixes from the installation manager I get the following error http://imgur.com/a/mD9gu. If I download and run the hotfix exe I also get this error.

I have been told by a support engineer:

When you initially installed Kentico did you get the installer from the Client Portal (client.kentico.com), and were the htofix.exe files downloaded from https://devnet.kentico.com/download/hotfixes ?  It is possible that the installation packages are an old version or could have become corrupt.   Additionally, does the folder C:\Windows\WinSxS\msil_microsoft.web.administration_31bf3856ad364e35_6.3.9600.17042_none_4ba6e63aae25ce48  exist on your filesystem and does it contain the Microsoft.Web.Administration.dll file?

In the (very few) cases I could find in the past with similar errors the customers addressed the issue in two ways:


    *1.  They re-installed the Kentico program files with a newly downloaded Kentico installer from the Client Portal then manually applied the hotfix with a newly downloaded executable from https://devnet.kentico.com/download/hotfixes . More information on re-installing only program files can be found here:*

    *https://docs.kentico.com/k10/installation/installing-kentico-questions-and-answers#InstallingKentico(QuestionsandAnswers)-WhenshouldIinstallonlyprogramfiles?* 

    *Please ensure you have an up-to-date backup of the project before attempting a re-installation.  You will not lose your Kentico website during the re-installation process unless you select to do so in the wizard.*

    *2. The second option that helped a customer in one instance, was they copied the folder (containing the .dll) mentioned above between their environments, as it was missing in one of their environments and attempted the process again.*

Everything was downloaded fresh from Kentico before beginning this process, I have also tried this on 2 other PC's (also Win 10 Pro 64bit) and get the same error.

I am not sure what is meant by copying the DLL between environments, the DLL exists in my file system, but is 6.1.7601.17514. We have tried opening the project in VS and using NuGet to download Microsoft.Web.Administration - Version 7.0.0.0 but for some reason this is coming down as the Microsoft.Web.Administration.dll I already have (6.1.7601.17514).

We have a project to start and I'd rather start with an up to date hot-fixed v10. Please help.