Rename-ComputeName

##AH - Adil Hindistan - Changing name of a domain joined computer
Current Name..: Adil-Laptop1 
New Name......: Adil-Laptop2

1) Registry is updated:
HKLM\System\CurrentControlSet\Control\ComputerName\ComputerName /v ComputerName /t REG_SZ /d Adil-Laptop2
HKLM\System\CurrentControlSet\Services\Tcpip\Parameters /v "NV Hostname" /t REG_SZ /d Adil-Laptop2

## Fun fact, simply change the above two keys and reboot, you will get error:
"the security database on the server does not have a computer account for this workstation trust relationship"
Restoring the names will fix it.


2) DnsHostName and SPN are updated in AD. 
Here are relevant notes from the log at %windir%\debug\NetSetup.log:

NetpChangeMachineName: from 'ADIL-LAPTOP1' to 'adil-laptop2' using '(NULL)' [0x2]
NetpDsGetDcName: trying to find DC in domain 'XYZ', flags: 0x1010
NetpDsGetDcName: found DC '\\ADServerVM005' in the specified domain
NetpChangeMachineName: status of connecting to  dc '\\ADServerVM005': 0x0
NetpGetLsaPrimaryDomain: status: 0x0
NetpManageMachineAccountWithSid: status of NetUserSetInfo on '\\ADServerVM005' for 'ADIL-LAPTOP1$': 0x0
NetpGetLsaPrimaryDomain: status: 0x0
NetpGetDnsHostName: PrimaryDnsSuffix defaulted to DNS domain name: xyz.org
NetpGetComputerObjectDn: Cracking account name XYZ\ADIL-LAPTOP2$ on \\ADServerVM005
NetpGetComputerObjectDn: Crack results: 	(Account already exists) DN = CN=ADIL-LAPTOP2,OU=Laptops,DC=XYZ,DC=org
NetpModifyComputerObjectInDs: Initial attribute values:
		DnsHostName  =  adil-laptop2.xyz.org
		ServicePrincipalName  =  HOST/adil-laptop2.xyz.org  RestrictedKrbHost/adil-laptop2.xyz.org  HOST/ADIL-LAPTOP2  RestrictedKrbHost/ADIL-LAPTOP2
NetpModifyComputerObjectInDs: Computer Object already exists in OU:
		DnsHostName  =  adil-laptop1.xyz.org
		ServicePrincipalName  =  WSMAN/ADIL-LAPTOP2  TERMSRV/ADIL-LAPTOP2  RestrictedKrbHost/ADIL-LAPTOP2  HOST/ADIL-LAPTOP2  WSMAN/adil-laptop1.xyz.org  TERMSRV/adil-laptop1.xyz.org  RestrictedKrbHost/adil-laptop1.xyz.org  HOST/adil-laptop1.xyz.org
NetpModifyComputerObjectInDs: Attribute values to set:
		DnsHostName  =  adil-laptop2.xyz.org
		ServicePrincipalName  =  HOST/adil-laptop2.xyz.org  RestrictedKrbHost/adil-laptop2.xyz.org
ldap_unbind status: 0x0
NetpChangeMachineName: status of setting DnsHostName and SPN: 0x0

---
* Win32_ComputerSystem has 'rename' method but it is not exposed when connected to WMI remotely. Ie. It's a local-only method.
* Cim_ComputerSystem does not have rename method

netjoin.dll -> NetpDecodeProvisioninBob
netjoin.dll -> NetpMachineValidToJoin
netjoin.dll -> NetpChangeMachineName