@@ -37,7 +37,7 @@ func (bt *Tagger) TagImages(imageID image.ID) error {

 	for _, rt := range bt.repoAndTags {

 		// TODO @jhowardmsft LCOW support. Will need revisiting.

 		platform := runtime.GOOS

-		if platform == "windows" && system.LCOWSupported() {

+		if system.LCOWSupported() {

 			platform = "linux"

 		}

 		if err := bt.imageComponent.TagImageWithReference(imageID, platform, rt); err != nil {

@@ -101,7 +101,7 @@ func (s *imageRouter) postImagesCreate(ctx context.Context, w http.ResponseWrite

 	//	}

 	//	valid := []string{runtime.GOOS}

 	//

-	//	if runtime.GOOS == "windows" && system.LCOWSupported() {

+	//	if system.LCOWSupported() {

 	//		valid = append(valid, "linux")

 	//	}

 	//

@@ -118,7 +118,7 @@ func (s *imageRouter) postImagesCreate(ctx context.Context, w http.ResponseWrite

 	//		return err

 	//	}

 	platform := runtime.GOOS

-	if platform == "windows" && system.LCOWSupported() {

+	if system.LCOWSupported() {

 		platform = "linux"

 	}

@@ -233,7 +233,7 @@ func (s *dispatchState) beginStage(stageName string, image builder.Image) {

 func (s *dispatchState) setDefaultPath() {

 	// TODO @jhowardmsft LCOW Support - This will need revisiting later

 	platform := runtime.GOOS

-	if platform == "windows" && system.LCOWSupported() {

+	if system.LCOWSupported() {

 		platform = "linux"

 	}

 	if system.DefaultPathEnv(platform) == "" {

@@ -91,8 +91,8 @@ var (

 // DefaultEscapeToken is the default escape token

 const DefaultEscapeToken = '\\'

-// DefaultPlatformToken is the platform assumed for the build if not explicitly provided

-var DefaultPlatformToken = runtime.GOOS

+// defaultPlatformToken is the platform assumed for the build if not explicitly provided

+var defaultPlatformToken = runtime.GOOS

 // Directive is the structure used during a build run to hold the state of

 // parsing directives.

@@ -119,7 +119,7 @@ func (d *Directive) setEscapeToken(s string) error {

 func (d *Directive) setPlatformToken(s string) error {

 	s = strings.ToLower(s)

 	valid := []string{runtime.GOOS}

-	if runtime.GOOS == "windows" && system.LCOWSupported() {

+	if system.LCOWSupported() {

 		valid = append(valid, "linux")

 	}

 	for _, item := range valid {

@@ -154,7 +154,7 @@ func (d *Directive) possibleParserDirective(line string) error {

 	// TODO @jhowardmsft LCOW Support: Eventually this check can be removed,

 	// but only recognise a platform token if running in LCOW mode.

-	if runtime.GOOS == "windows" && system.LCOWSupported() {

+	if system.LCOWSupported() {

 		tpcMatch := tokenPlatformCommand.FindStringSubmatch(strings.ToLower(line))

 		if len(tpcMatch) != 0 {

 			for i, n := range tokenPlatformCommand.SubexpNames() {

@@ -177,7 +177,7 @@ func (d *Directive) possibleParserDirective(line string) error {

 func NewDefaultDirective() *Directive {

 	directive := Directive{}

 	directive.setEscapeToken(string(DefaultEscapeToken))

-	directive.setPlatformToken(runtime.GOOS)

+	directive.setPlatformToken(defaultPlatformToken)

 	return &directive

 }

@@ -1038,7 +1038,7 @@ func (container *Container) CreateDaemonEnvironment(tty bool, linkedEnv []string

 		platform = runtime.GOOS

 	}

 	env := []string{}

-	if runtime.GOOS != "windows" || (runtime.GOOS == "windows" && system.LCOWSupported() && platform == "linux") {

+	if runtime.GOOS != "windows" || (system.LCOWSupported() && platform == "linux") {

 		env = []string{

 			"PATH=" + system.DefaultPathEnv(platform),

 			"HOSTNAME=" + container.Config.Hostname,

@@ -1052,7 +1052,6 @@ func (container *Container) CreateDaemonEnvironment(tty bool, linkedEnv []string

 	// because the env on the container can override certain default values

 	// we need to replace the 'env' keys where they match and append anything

 	// else.

-	//return ReplaceOrAppendEnvValues(linkedEnv, container.Config.Env)

-	foo := ReplaceOrAppendEnvValues(env, container.Config.Env)

-	return foo

+	env = ReplaceOrAppendEnvValues(env, container.Config.Env)

+	return env

 }

@@ -93,7 +93,7 @@ func (c *containerAdapter) pullImage(ctx context.Context) error {

 		// TODO @jhowardmsft LCOW Support: This will need revisiting as

 		// the stack is built up to include LCOW support for swarm.

 		platform := runtime.GOOS

-		if platform == "windows" && system.LCOWSupported() {

+		if system.LCOWSupported() {

 			platform = "linux"

 		}

 		err := c.backend.PullImage(ctx, c.container.image(), "", platform, metaHeaders, authConfig, pw)

@@ -82,7 +82,7 @@ func (daemon *Daemon) create(params types.ContainerCreateConfig, managed bool) (

 	if params.Platform == "" {

 		params.Platform = runtime.GOOS

 	}

-	if params.Platform == "windows" && system.LCOWSupported() {

+	if system.LCOWSupported() {

 		params.Platform = "linux"

 	}

@@ -106,7 +106,7 @@ func (daemon *Daemon) create(params types.ContainerCreateConfig, managed bool) (

 	if img != nil {

 		if params.Platform != img.Platform() {

 			// Ignore this in LCOW mode. @jhowardmsft TODO - This will need revisiting later.

-			if !(runtime.GOOS == "windows" && system.LCOWSupported()) {

+			if !system.LCOWSupported() {

 				return nil, fmt.Errorf("cannot create a %s container from a %s image", params.Platform, img.Platform())

 			}

 		}

@@ -118,7 +118,7 @@ func (d *Driver) terminateUvm(context string) error {

 	// FIXME: @jhowardmsft

 	// This isn't thread-safe yet, but will change anyway with the lifetime

-	// changes and multiple instances. Defering that work for now.

+	// changes and multiple instances. Deferring that work for now.

 	uvm := d.config.Uvm

 	d.config.Uvm = nil

@@ -190,7 +190,6 @@ func (d *Driver) Create(id, parent string, opts *graphdriver.CreateOpts) error {

 	// Make sure layers are created with the correct ACL so that VMs can access them.

 	layerPath := d.dir(id)

 	logrus.Debugf("lcowdriver: create: id %s: creating layerPath %s", id, layerPath)

-	// Make sure the layers are created with the correct ACL so that VMs can access them.

 	if err := system.MkdirAllWithACL(layerPath, 755, system.SddlNtvmAdministratorsLocalSystem); err != nil {

 		return err

 	}

@@ -154,7 +154,7 @@ func (d *Driver) Status() [][2]string {

 }

 // panicIfUsedByLcow does exactly what it says.

-// TODO @jhowardmsft - this is an temporary measure for the bring-up of

+// TODO @jhowardmsft - this is a temporary measure for the bring-up of

 // Linux containers on Windows. It is a failsafe to ensure that the right

 // graphdriver is used.

 func panicIfUsedByLcow() {

@@ -16,7 +16,7 @@ import (

 func (daemon *Daemon) ExportImage(names []string, outStream io.Writer) error {

 	// TODO @jhowardmsft LCOW. This will need revisiting later.

 	platform := runtime.GOOS

-	if platform == "windows" && system.LCOWSupported() {

+	if system.LCOWSupported() {

 		platform = "linux"

 	}

 	imageExporter := tarexport.NewTarExporter(daemon.stores[platform].imageStore, daemon.stores[platform].layerStore, daemon.stores[platform].referenceStore, daemon)

@@ -29,7 +29,7 @@ func (daemon *Daemon) ExportImage(names []string, outStream io.Writer) error {

 func (daemon *Daemon) LoadImage(inTar io.ReadCloser, outStream io.Writer, quiet bool) error {

 	// TODO @jhowardmsft LCOW. This will need revisiting later.

 	platform := runtime.GOOS

-	if platform == "windows" && system.LCOWSupported() {

+	if system.LCOWSupported() {

 		platform = "linux"

 	}

 	imageExporter := tarexport.NewTarExporter(daemon.stores[platform].imageStore, daemon.stores[platform].layerStore, daemon.stores[platform].referenceStore, daemon)

@@ -43,7 +43,7 @@ func (daemon *Daemon) PushImage(ctx context.Context, image, tag string, metaHead

 	// TODO @jhowardmsft LCOW Support. This will require revisiting. For now, hard-code.

 	platform := runtime.GOOS

-	if platform == "windows" && system.LCOWSupported() {

+	if system.LCOWSupported() {

 		platform = "linux"

 	}

@@ -38,7 +38,7 @@ func (r byCreated) Less(i, j int) bool { return r[i].Created < r[j].Created }

 func (daemon *Daemon) Map() map[image.ID]*image.Image {

 	// TODO @jhowardmsft LCOW. This will need  work to enumerate the stores for all platforms.

 	platform := runtime.GOOS

-	if platform == "windows" && system.LCOWSupported() {

+	if system.LCOWSupported() {

 		platform = "linux"

 	}

 	return daemon.stores[platform].imageStore.Map()

@@ -53,7 +53,7 @@ func (daemon *Daemon) Images(imageFilters filters.Args, all bool, withExtraAttrs

 	// TODO @jhowardmsft LCOW. This will need  work to enumerate the stores for all platforms.

 	platform := runtime.GOOS

-	if platform == "windows" && system.LCOWSupported() {

+	if system.LCOWSupported() {

 		platform = "linux"

 	}

@@ -90,7 +90,7 @@ func (daemon *Daemon) SystemInfo() (*types.Info, error) {

 	// TODO @jhowardmsft LCOW support. For now, hard-code the platform shown for the driver status

 	p := runtime.GOOS

-	if p == "windows" && system.LCOWSupported() {

+	if system.LCOWSupported() {

 		p = "linux"

 	}

@@ -161,7 +161,7 @@ func (daemon *Daemon) VolumesPrune(ctx context.Context, pruneFilters filters.Arg

 func (daemon *Daemon) ImagesPrune(ctx context.Context, pruneFilters filters.Args) (*types.ImagesPruneReport, error) {

 	// TODO @jhowardmsft LCOW Support: This will need revisiting later.

 	platform := runtime.GOOS

-	if platform == "windows" && system.LCOWSupported() {

+	if system.LCOWSupported() {

 		platform = "linux"

 	}

@@ -491,7 +491,7 @@ func (p *v2Puller) pullSchema1(ctx context.Context, ref reference.Named, unverif

 	// the history does, but unfortunately that's a string, so search through

 	// all the history until hopefully we find one which indicates the os.

 	platform := runtime.GOOS

-	if runtime.GOOS == "windows" && system.LCOWSupported() {

+	if system.LCOWSupported() {

 		type config struct {

 			Os string `json:"os,omitempty"`

 		}

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

 import (

 	"encoding/json"

 	"fmt"

-	"runtime"

 	"strings"

 	"sync"

@@ -116,8 +115,9 @@ func (is *store) Create(config []byte) (ID, error) {

 		return "", err

 	}

+	// TODO @jhowardmsft - LCOW Support. This will need revisiting.

 	// Integrity check - ensure we are creating something for the correct platform

-	if runtime.GOOS == "windows" && system.LCOWSupported() {

+	if system.LCOWSupported() {

 		if strings.ToLower(img.Platform()) != strings.ToLower(is.platform) {

 			return "", fmt.Errorf("cannot create entry for platform %q in image store for platform %q", img.Platform(), is.platform)

 		}

@@ -5,7 +5,6 @@ import (

 	"fmt"

 	"io"

 	"io/ioutil"

-	"runtime"

 	"strings"

 	"sync"

@@ -273,7 +272,7 @@ func (ls *layerStore) registerWithDescriptor(ts io.Reader, parent ChainID, platf

 	var p *roLayer

 	// Integrity check - ensure we are creating something for the correct platform

-	if runtime.GOOS == "windows" && system.LCOWSupported() {

+	if system.LCOWSupported() {

 		if strings.ToLower(ls.platform) != strings.ToLower(string(platform)) {

 			return nil, fmt.Errorf("cannot create entry for platform %q in layer store for platform %q", platform, ls.platform)

 		}

@@ -353,7 +353,7 @@ func isEqualPrivilege(a, b types.PluginPrivilege) bool {

 func configToRootFS(c []byte) (*image.RootFS, layer.Platform, error) {

 	// TODO @jhowardmsft LCOW - Will need to revisit this. For now, calculate the platform.

 	platform := layer.Platform(runtime.GOOS)

-	if platform == "windows" && system.LCOWSupported() {

+	if system.LCOWSupported() {

 		platform = "linux"

 	}

 	var pluginConfig types.PluginConfig