Windows 10 IoT Core will not install onto my SD card / Raspberry Pi 3

Question

I tried to install Windows 10 IoT Core onto my SD card using Microsoft's IoT Dashboard. I fill out all of the fields then it says:

Downloading Windows IoT Core
Download Complete.

Then it says:

Flashing your SD card
Unpacking installer

Then a window pops up saying:

Windows Installer. Version 5.0.15063.0
Msiexec /option [Optional Parameter]

Then it goes into detail about the options for the parameters. Then after I push ok a new window pops up saying:

Failed to unpack the Windows 10 IoT Core Installation Package.

What's the issue here, and how can I fix this?

Answer 1

Look what [1] tells:

Troubleshooting Install issues

Error: Failed to unpack Windows 10 IoT

Core installation package If your installation fails with the above message then you need to run the setup.exe using the Administrator account. This error message could appear even if you are logged in as a user who has administrator rights; it has to be the Administrator user.

also there is a note:

Please note that by default the Administrator account is disable in Windows 10.

and there are instructions how to enable them.

[1] http://www.opentechguides.com/how-to/article/raspberry-pi/104/install-windows-10-iot.html