By default, Windows restricts RDP access for account without passwords. Of course, this is a security 101 issue. When trying to do so, one should expect to see errors such as this:

Sometimes, Windows savvy users want to bypass that restrict. Well, it’s as simple as copy & paste the following line in PowerShell running as Administrator:

Set-ItemProperty -Path 'REGISTRY::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa' -Name 'LimitBlankPasswordUse' -Value 0 -force