It is required to download Plesk Installer to Windows Core or via Powershell but in the documentation only the link to download it via web browser:
This is bug with ID PPPM-11065 which will be fixed in future documentation updates.
As a workaround, download Plesk installer using the following steps:
- Connect to the server via RDP
- Run the following command via Windows PowerShell to download Plesk installer:
PS Invoke-WebRequest -URI https://installer-win.plesk.com/plesk-installer.exe -OutFile plesk-installer.exe