Installing Grasshopper Plugins

Press Win+R to open the run dialogue and type powershell, then press OK.

With Powershell open, copy and paste the following command:

[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; iex ((New-Object System.Net.WebClient).DownloadString('https://docs.itau.uni-weimar.de/attachments/14'))

Now you should have all required Plugins installed.