From 90cbdd85e1d95f2d4e55f5a6cea07f193d14dcc5 Mon Sep 17 00:00:00 2001
From: uchagani <umair.chagani@gmail.com>
Date: Thu, 23 Oct 2014 02:27:05 -0400
Subject: [PATCH] Rename Windows guest without reboot

---
 .../guests/windows/cap/change_host_name.rb    | 29 +++++++++++++++----
 1 file changed, 24 insertions(+), 5 deletions(-)

diff --git a/plugins/guests/windows/cap/change_host_name.rb b/plugins/guests/windows/cap/change_host_name.rb
index fa48a3137..c7f3f248a 100644
--- a/plugins/guests/windows/cap/change_host_name.rb
+++ b/plugins/guests/windows/cap/change_host_name.rb
@@ -14,12 +14,31 @@ module VagrantPlugins
           
           # Rename and reboot host if rename succeeded
           script = <<-EOH
-            $computer = Get-WmiObject -Class Win32_ComputerSystem
-            $retval = $computer.rename("#{name}").returnvalue
-            if ($retval -eq 0) {
-              shutdown /r /t 5 /f /d p:4:1 /c "Vagrant Rename Computer"
+            try
+            {
+              $computer = Get-WmiObject -Class Win32_ComputerSystem
+              $computer.rename("#{name}")
+                 
+              Remove-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters" -name "Hostname" 
+              Remove-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters" -name "NV Hostname" 
+              
+              New-PSDrive -name HKU -PSProvider "Registry" -Root "HKEY_USERS"
+              
+              Set-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Control\Computername\Computername" -name "Computername" -value "#{name}"
+              Set-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Control\Computername\ActiveComputername" -name "Computername" -value "#{name}"
+              Set-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters" -name "Hostname" -value "#{name}"
+              Set-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters" -name "NV Hostname" -value  "#{name}"
+              Set-ItemProperty -path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" -name "AltDefaultDomainName" -value "#{name}"
+              Set-ItemProperty -path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" -name "DefaultDomainName" -value "#{name}"
+              Set-ItemProperty -path "HKCU:\Volatile Environment" -name "LOGONSERVER" -value "#{name}"
+              [Environment]::SetEnvironmentVariable("COMPUTERNAME", "#{name}", "User")
+              
+              exit 0
+            }
+            catch
+            {
+              exit -1
             }
-            exit $retval
           EOH
 
           machine.communicate.execute(