diff --git a/spec/unit/azure_server_create_spec.rb b/spec/unit/azure_server_create_spec.rb
index 039483e..7b3e8d6 100644
--- a/spec/unit/azure_server_create_spec.rb
+++ b/spec/unit/azure_server_create_spec.rb
@@ -159,7 +159,7 @@ describe "parameter test:" do
 			Chef::Config[:knife][:azure_dns_name] = 'service001'
 			Chef::Config[:knife][:azure_vm_name] = 'newvm01'
 			Chef::Config[:knife][:bootstrap_protocol] = 'winrm'
-			Chef::Config[:knife][:winrm_user] = 'administrator'
+			Chef::Config[:knife][:winrm_user] = 'testuser'
 			Chef::Config[:knife][:winrm_password] = 'Jetstream123!'
 			@server_instance.should_receive(:is_image_windows?).twice.and_return(true)
 			@server_params = @server_instance.create_server_def
@@ -167,7 +167,7 @@ describe "parameter test:" do
 		end
 		it "port should be winrm-port value specified in the option" do
             Chef::Config[:knife][:bootstrap_protocol] = 'winrm'
-            Chef::Config[:knife][:winrm_user] = 'administrator'
+            Chef::Config[:knife][:winrm_user] = 'testuser'
             Chef::Config[:knife][:winrm_password] = 'Jetstream123!'
             Chef::Config[:knife][:winrm_port] = '5990'
 			@server_instance.should_receive(:is_image_windows?).twice.and_return(true)
@@ -210,6 +210,7 @@ describe "cloud attributes" do
 			@bootstrap.should_receive(:run)
 			@server_instance.should_receive(:is_image_windows?).any_number_of_times.and_return(true)
 			Chef::Config[:knife][:bootstrap_protocol] = 'winrm'
+			Chef::Config[:knife][:winrm_user] = 'testuser'
 			Chef::Config[:knife][:winrm_password] = 'winrm_password'
 			Chef::Config[:knife][:azure_dns_name] = 'service004'
 			Chef::Config[:knife][:azure_vm_name] = 'winrm-vm'
@@ -255,6 +256,7 @@ end
 describe "for bootstrap protocol winrm:" do
 	before do
 		Chef::Config[:knife][:bootstrap_protocol] = 'winrm'
+		Chef::Config[:knife][:winrm_user] = 'testuser'
 		Chef::Config[:knife][:winrm_password] = 'winrm_password'
 	end
 
@@ -266,9 +268,22 @@ describe "for bootstrap protocol winrm:" do
 		@server_params[:bootstrap_proto].should == 'winrm'
 		@server_params[:azure_dns_name].should == 'service001'
 		@server_params[:azure_vm_name].should == 'vm002'
+		@server_params[:winrm_user].should == 'testuser'
 		@server_params[:port].should == '5985'
 	end
 
+	it "winrm_user cannot be 'administrator'" do
+		@server_instance.should_receive(:is_image_windows?).twice.and_return(true)
+		Chef::Config[:knife][:winrm_user] = 'administrator'
+		expect {@server_instance.create_server_def}.to raise_error
+	end
+
+	it "winrm_user cannot be 'admin*'" do
+		@server_instance.should_receive(:is_image_windows?).twice.and_return(true)
+		Chef::Config[:knife][:winrm_user] = 'Admin12'
+		expect {@server_instance.create_server_def}.to raise_error
+	end
+
 	context "bootstrap node" do
 		before do
 			@bootstrap = Chef::Knife::BootstrapWindowsWinrm.new