@@ -3,6 +3,7 @@ package daemon

 import (

 	"fmt"

 	"io"

+	"runtime"

 	"strings"

 	"time"

@@ -123,11 +124,15 @@ func (d *Daemon) ContainerExecCreate(name string, config *types.ExecConfig) (str

 	execConfig.Tty = config.Tty

 	execConfig.Privileged = config.Privileged

 	execConfig.User = config.User

-	execConfig.Env = []string{

-		"PATH=" + system.DefaultPathEnv,

-	}

-	if config.Tty {

-		execConfig.Env = append(execConfig.Env, "TERM=xterm")

+

+	// On Windows, don't default the path, let the platform do it. Also TERM isn't meaningful

+	if runtime.GOOS != "windows" {

+		execConfig.Env = []string{

+			"PATH=" + system.DefaultPathEnv,

+		}

+		if config.Tty {

+			execConfig.Env = append(execConfig.Env, "TERM=xterm")

+		}

 	}

 	execConfig.Env = utils.ReplaceOrAppendEnvValues(execConfig.Env, container.Config.Env)

 	if len(execConfig.User) == 0 {

@@ -509,3 +509,14 @@ func (s *DockerSuite) TestExecStartFails(c *check.C) {

 	c.Assert(err, checker.NotNil, check.Commentf(out))

 	c.Assert(out, checker.Contains, "executable file not found")

 }

+

+// Fix regression in https://github.com/docker/docker/pull/26461#issuecomment-250287297

+func (s *DockerSuite) TestExecWindowsPathNotWiped(c *check.C) {

+	testRequires(c, DaemonIsWindows)

+	out, _ := dockerCmd(c, "run", "-d", "--name", "testing", minimalBaseImage(), "powershell", "start-sleep", "60")

+	c.Assert(waitRun(strings.TrimSpace(out)), check.IsNil)

+

+	out, _ = dockerCmd(c, "exec", "testing", "powershell", "write-host", "$env:PATH")

+	out = strings.ToLower(strings.Trim(out, "\r\n"))

+	c.Assert(out, checker.Contains, `windowspowershell\v1.0`)

+}