Windows Users/Groups
Show Current User
Powershell
$env:UserName
$env:UserDomain
Change Password
Use one of the following methods...
net user myuser mynewpass
To be prompted for the password (more secure)...
net user myuser *
Ctrl + Alt + Del
There will be an option to "Change password"In a remote desktop session Ctrl + Alt + Del is often replaced by Ctrl + Alt + End.
If this doesn't work (as is often the case if you login to nested remote desktop connections) use the On Screen Keyboard....
Search for OSK and run On-Screen Keyboard then press Ctrl + Alt on your physical keyboard whilst clicking the Del key in the OSK.
Local Users
Server Manager
Server Manager - Tools - Computer Management - Local Users and Groups
To create a new user select Users, right-click and select New User.
To make the user an administrator select Groups and select the Administrators group. Click Add to add a user to this group.
Powershell
Requires the LocalAccounts module (installed by default in Windows Server 2016 and above)To create the user...
$Password = Read-Host -AsSecureString
New-LocalUser -Name username -Description "description" -Password $Password
To make the user an administrator...
Add-LocalGroupMember -Group "Administrators" -Member "username"
username can be a local user, a domain user, a domain group or a Microsoft AccountTo remove the user from the Administrators group (i.e. to undo the change above)...
Remove-LocalGroupMember -Group "Administrators" -Member "username"
To see a list of users...
Get-LocalUser
Groups
Powershell
Requires the LocalAccounts module (installed by default in Windows Server 2016 and above)To show groups...
Get-LocalGroup
Show group membership...
Get-LocalGroupMember -Group "Administrators"