diff --git a/plugins/communicators/winrm/shell.rb b/plugins/communicators/winrm/shell.rb
index 949908a79..e21399d2b 100644
--- a/plugins/communicators/winrm/shell.rb
+++ b/plugins/communicators/winrm/shell.rb
@@ -71,7 +71,13 @@ module VagrantPlugins
       def elevated(command, opts = {}, &block)
         connection.shell(:elevated) do |shell|
           shell.interactive_logon = opts[:interactive] || false
-          execute_with_rescue(shell, command, &block)
+          uname = shell.username
+          begin
+            shell.username = elevated_username
+            execute_with_rescue(shell, command, &block)
+          ensure
+            shell.username = uname
+          end
         end
       end
 
@@ -216,6 +222,24 @@ module VagrantPlugins
           retry_delay: @config.retry_delay,
           retry_limit: @config.max_tries }
       end
+
+      def elevated_username
+        if @elevated_username
+          return @elevated_username
+        end
+        if username.include?("\\")
+          return @elevated_username = username
+        end
+        computername = ""
+        powershell("Write-Output $env:computername") do |type, data|
+          computername << data if type == :stdout
+        end
+        computername.strip!
+        if computername.empty?
+          return @elevated_username = username
+        end
+        @elevated_username = "#{computername}\\#{username}"
+      end
     end #WinShell class
   end
 end
diff --git a/test/unit/plugins/communicators/winrm/shell_test.rb b/test/unit/plugins/communicators/winrm/shell_test.rb
index daffd48e0..9a32a5df8 100644
--- a/test/unit/plugins/communicators/winrm/shell_test.rb
+++ b/test/unit/plugins/communicators/winrm/shell_test.rb
@@ -75,6 +75,14 @@ describe VagrantPlugins::CommunicatorWinRM::WinRMShell do
   end
 
   describe ".elevated" do
+    let(:username) { double("username") }
+
+    before do
+      allow(subject).to receive(:elevated_username).and_return(username)
+      allow(shell).to receive(:username).and_return(username)
+      allow(shell).to receive(:username=)
+    end
+
     it "should call winrm elevated" do
       expect(shell).to receive(:run).with("dir").and_return(output)
       expect(shell).to receive(:interactive_logon=).with(false)
@@ -93,6 +101,13 @@ describe VagrantPlugins::CommunicatorWinRM::WinRMShell do
       expect { subject.powershell("dir") }.to raise_error(
         VagrantPlugins::CommunicatorWinRM::Errors::ExecutionError)
     end
+
+    it "should use elevated username" do
+      expect(subject).to receive(:elevated_username).and_return(username)
+      expect(shell).to receive(:run).with("dir").and_return(output)
+      expect(shell).to receive(:interactive_logon=).with(false)
+      expect(subject.elevated("dir").exitcode).to eq(0)
+    end
   end
 
   describe ".cmd" do
@@ -178,4 +193,41 @@ describe VagrantPlugins::CommunicatorWinRM::WinRMShell do
     end
   end
 
+  describe "#elevated_username" do
+    let(:username) { "username" }
+
+    before do
+      allow(subject).to receive(:username).and_return(username)
+      allow(subject).to receive(:powershell)
+    end
+
+    it "should return username" do
+      expect(subject.send(:elevated_username)).to eq(username)
+    end
+
+    it "should attempt to get computer name" do
+      expect(subject).to receive(:powershell).with(/computername/)
+      subject.send(:elevated_username)
+    end
+
+    it "should prepend computer name when available" do
+      expect(subject).to receive(:powershell).with(/computername/).and_yield(:stdout, "COMPUTERNAME")
+      expect(subject.send(:elevated_username)).to eq("COMPUTERNAME\\#{username}")
+    end
+
+    it "should only compute elevated username once" do
+      expect(subject).to receive(:powershell).once.with(/computername/).and_yield(:stdout, "COMPUTERNAME")
+      expect(subject.send(:elevated_username)).to eq("COMPUTERNAME\\#{username}")
+      expect(subject.send(:elevated_username)).to eq("COMPUTERNAME\\#{username}")
+    end
+
+    context "when username includes computer/domain name" do
+      let(:username) { "machine\\username" }
+
+      it "should not attempt to get computer name" do
+        expect(subject).not_to receive(:powershell)
+        expect(subject.send(:elevated_username)).to eq(username)
+      end
+    end
+  end
 end