Server 2016

Update or Install missing drivers on Windows Server Core 2016/2019 for free

Install Drive Easy Free from:
https://www.drivereasy.com/download-free-version/

Start DriverEasy from

“C:\Program Files\Easeware\DriverEasy\DriverEasy.exe”

Scan the machine and pick the driver you need from the list and download it.

In the command prompt, cd to folder:

c:\users\<username here>\Appdata\Roaming\Easeware\DriverEasy\Drivers\

To find the driver you just downloaded, type:
dir *.inf /s/b
CD to that directory and type:
pnputil -i -a *.inf

Note: DriverEasy will crash after ever single download as it does not have a GUI to fall back on, so, unless you want to spend a lot of time restarting DriverEasy, only bother with the drivers you really need. I usually only bother with storage and network drivers.
Also, if you happen to have core installed on a laptop with integrated hardware like webcams, etc. these drivers will have issues installing as the underlying infrastructure is missing

Hyper-V

Force Remove Host from SCVMM 2016/2019 & Hyper-V Console

To remove from SCVMM:

Open Powershell with administrative credentials:

PS C:\> $Credential = Get-Credential
PS C:\> $VMHost = Get-SCVMHost -ComputerName “<Hostname of Server here>”
PS C:\> Remove-SCVMHost -VMHost $VMHost -Credential $Credential

The Get-Credential cmd-let will open a prompt in which you have to supply credentials with the rights to remove the host. In the second line you specify the server. This doesn’t have to be the FQDN, the Netbios name will do.
The last line actually removes the server. This may take a few minutes, depending if the server responds or not. If the server does not respond, Powershell waits for a time-out.

To remove from a Hyper-V console:

Open Powershell with administrative credentials:

PS C:\> Get-VM
PS C:\> Remove-VM -name [“VM Name Here”] -force

Use this to remove VMs that are in the state of SavedCritical. The “Get-VM” command will show a list of VMs registered on this Hyper-V server. The Saved-Critical VMs will list there too. Make sure the -force is added or it won’t do the trick. If your machine name has spaces, use the quotes (without the square brackets of course].

This was tested on Server 2016 and Server 2019. It’s also expected to work on later server releases.