diff --git a/wp-admin/includes/media.php b/wp-admin/includes/media.php
index e2f78d63f4..817bab9aa9 100644
--- a/wp-admin/includes/media.php
+++ b/wp-admin/includes/media.php
@@ -1558,7 +1558,7 @@ $post_params = array(
 $post_params = apply_filters( 'upload_post_params', $post_params ); // hook change! old name: 'swfupload_post_params'
 
 $plupload_init = array(
-	'runtimes' => 'html5,silverlight,flash,html4',
+	'runtimes' => 'html5,silverlight,html4',
 	'browse_button' => 'plupload-browse-button',
 	'container' => 'plupload-upload-ui',
 	'drop_element' => 'drag-drop-area',
diff --git a/wp-includes/js/plupload/plupload.flash.js b/wp-includes/js/plupload/plupload.flash.js
index 7d3f0087c8..ab0c01417a 100644
--- a/wp-includes/js/plupload/plupload.flash.js
+++ b/wp-includes/js/plupload/plupload.flash.js
@@ -1 +1 @@
-(function(f,b,d,e){var a={},g={};function c(){var h;try{h=navigator.plugins["Shockwave Flash"];h=h.description}catch(j){try{h=new ActiveXObject("ShockwaveFlash.ShockwaveFlash").GetVariable("$version")}catch(i){h="0.0"}}h=h.match(/\d+/g);return parseFloat(h[0]+"."+h[1])}d.flash={trigger:function(j,h,i){setTimeout(function(){var m=a[j],l,k;if(m){m.trigger("Flash:"+h,i)}},0)}};d.runtimes.Flash=d.addRuntime("flash",{getFeatures:function(){return{jpgresize:true,pngresize:true,maxWidth:8091,maxHeight:8091,chunks:true,progress:true,multipart:true,multi_selection:true}},init:function(m,o){var k,l,h=0,i=b.body;if(c()<10){o({success:false});return}g[m.id]=false;a[m.id]=m;k=b.getElementById(m.settings.browse_button);l=b.createElement("div");l.id=m.id+"_flash_container";d.extend(l.style,{position:"absolute",top:"0px",background:m.settings.shim_bgcolor||"transparent",zIndex:99999,width:"100%",height:"100%"});l.className="plupload flash";if(m.settings.container){i=b.getElementById(m.settings.container);if(d.getStyle(i,"position")==="static"){i.style.position="relative"}}i.appendChild(l);(function(){var p,q;p='<object id="'+m.id+'_flash" type="application/x-shockwave-flash" data="'+m.settings.flash_swf_url+'" ';if(d.ua.ie){p+='classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" '}p+='width="100%" height="100%" style="outline:0"><param name="movie" value="'+m.settings.flash_swf_url+'" /><param name="flashvars" value="id='+escape(m.id)+'" /><param name="wmode" value="transparent" /><param name="allowscriptaccess" value="always" /></object>';if(d.ua.ie){q=b.createElement("div");l.appendChild(q);q.outerHTML=p;q=null}else{l.innerHTML=p}}());function n(){return b.getElementById(m.id+"_flash")}function j(){if(h++>5000){o({success:false});return}if(g[m.id]===false){setTimeout(j,1)}}j();k=l=null;m.bind("Destroy",function(p){var q;d.removeAllEvents(b.body,p.id);delete g[p.id];delete a[p.id];q=b.getElementById(p.id+"_flash_container");if(q){q.parentNode.removeChild(q)}});m.bind("Flash:Init",function(){var r={},q;try{n().setFileFilters(m.settings.filters,m.settings.multi_selection)}catch(p){o({success:false});return}if(g[m.id]){return}g[m.id]=true;m.bind("UploadFile",function(s,u){var v=s.settings,t=m.settings.resize||{};n().uploadFile(r[u.id],v.url,{name:u.target_name||u.name,mime:d.mimeTypes[u.name.replace(/^.+\.([^.]+)/,"$1").toLowerCase()]||"application/octet-stream",chunk_size:v.chunk_size,width:t.width,height:t.height,quality:t.quality,multipart:v.multipart,multipart_params:v.multipart_params||{},file_data_name:v.file_data_name,format:/\.(jpg|jpeg)$/i.test(u.name)?"jpg":"png",headers:v.headers,urlstream_upload:v.urlstream_upload})});m.bind("CancelUpload",function(){n().cancelUpload()});m.bind("Flash:UploadProcess",function(t,s){var u=t.getFile(r[s.id]);if(u.status!=d.FAILED){u.loaded=s.loaded;u.size=s.size;t.trigger("UploadProgress",u)}});m.bind("Flash:UploadChunkComplete",function(s,u){var v,t=s.getFile(r[u.id]);v={chunk:u.chunk,chunks:u.chunks,response:u.text};s.trigger("ChunkUploaded",t,v);if(t.status!==d.FAILED&&s.state!==d.STOPPED){n().uploadNextChunk()}if(u.chunk==u.chunks-1){t.status=d.DONE;s.trigger("FileUploaded",t,{response:u.text})}});m.bind("Flash:SelectFiles",function(s,v){var u,t,w=[],x;for(t=0;t<v.length;t++){u=v[t];x=d.guid();r[x]=u.id;r[u.id]=x;w.push(new d.File(x,u.name,u.size))}if(w.length){m.trigger("FilesAdded",w)}});m.bind("Flash:SecurityError",function(s,t){m.trigger("Error",{code:d.SECURITY_ERROR,message:d.translate("Security error."),details:t.message,file:m.getFile(r[t.id])})});m.bind("Flash:GenericError",function(s,t){m.trigger("Error",{code:d.GENERIC_ERROR,message:d.translate("Generic error."),details:t.message,file:m.getFile(r[t.id])})});m.bind("Flash:IOError",function(s,t){m.trigger("Error",{code:d.IO_ERROR,message:d.translate("IO error."),details:t.message,file:m.getFile(r[t.id])})});m.bind("Flash:ImageError",function(s,t){m.trigger("Error",{code:parseInt(t.code,10),message:d.translate("Image error."),file:m.getFile(r[t.id])})});m.bind("Flash:StageEvent:rollOver",function(s){var t,u;t=b.getElementById(m.settings.browse_button);u=s.settings.browse_button_hover;if(t&&u){d.addClass(t,u)}});m.bind("Flash:StageEvent:rollOut",function(s){var t,u;t=b.getElementById(m.settings.browse_button);u=s.settings.browse_button_hover;if(t&&u){d.removeClass(t,u)}});m.bind("Flash:StageEvent:mouseDown",function(s){var t,u;t=b.getElementById(m.settings.browse_button);u=s.settings.browse_button_active;if(t&&u){d.addClass(t,u);d.addEvent(b.body,"mouseup",function(){d.removeClass(t,u)},s.id)}});m.bind("Flash:StageEvent:mouseUp",function(s){var t,u;t=b.getElementById(m.settings.browse_button);u=s.settings.browse_button_active;if(t&&u){d.removeClass(t,u)}});m.bind("Flash:ExifData",function(s,t){m.trigger("ExifData",m.getFile(r[t.id]),t.data)});m.bind("Flash:GpsData",function(s,t){m.trigger("GpsData",m.getFile(r[t.id]),t.data)});m.bind("QueueChanged",function(s){m.refresh()});m.bind("FilesRemoved",function(s,u){var t;for(t=0;t<u.length;t++){n().removeFile(r[u[t].id])}});m.bind("StateChanged",function(s){m.refresh()});m.bind("Refresh",function(s){var t,u,v;n().setFileFilters(m.settings.filters,m.settings.multi_selection);t=b.getElementById(s.settings.browse_button);if(t){u=d.getPos(t,b.getElementById(s.settings.container));v=d.getSize(t);d.extend(b.getElementById(s.id+"_flash_container").style,{top:u.y+"px",left:u.x+"px",width:v.w+"px",height:v.h+"px"})}});m.bind("DisableBrowse",function(s,t){n().disableBrowse(t)});o({success:true})})}})})(window,document,plupload);
\ No newline at end of file
+//
\ No newline at end of file
diff --git a/wp-includes/media.php b/wp-includes/media.php
index d962e8c766..be8b350bec 100644
--- a/wp-includes/media.php
+++ b/wp-includes/media.php
@@ -1639,7 +1639,7 @@ function wp_plupload_default_settings() {
 	$max_upload_size = wp_max_upload_size();
 
 	$defaults = array(
-		'runtimes'            => 'html5,silverlight,flash,html4',
+		'runtimes'            => 'html5,silverlight,html4',
 		'file_data_name'      => 'async-upload', // key passed to $_FILE.
 		'multiple_queues'     => true,
 		'max_file_size'       => $max_upload_size . 'b',
diff --git a/wp-includes/script-loader.php b/wp-includes/script-loader.php
index b4e0333b2b..096fd92868 100644
--- a/wp-includes/script-loader.php
+++ b/wp-includes/script-loader.php
@@ -245,12 +245,15 @@ function wp_default_scripts( &$scripts ) {
 
 	$scripts->add( 'plupload', '/wp-includes/js/plupload/plupload.js', array(), '1.5.7' );
 	$scripts->add( 'plupload-html5', '/wp-includes/js/plupload/plupload.html5.js', array('plupload'), '1.5.7' );
-	$scripts->add( 'plupload-flash', '/wp-includes/js/plupload/plupload.flash.js', array('plupload'), '1.5.7' );
+
+	// Not used, kept for dependency back-compat.
+	$scripts->add( 'plupload-flash', false, array(), '1.5.7' );
+
 	$scripts->add( 'plupload-silverlight', '/wp-includes/js/plupload/plupload.silverlight.js', array('plupload'), '1.5.7' );
 	$scripts->add( 'plupload-html4', '/wp-includes/js/plupload/plupload.html4.js', array('plupload'), '1.5.7' );
 
 	// cannot use the plupload.full.js, as it loads browserplus init JS from Yahoo
-	$scripts->add( 'plupload-all', false, array('plupload', 'plupload-html5', 'plupload-flash', 'plupload-silverlight', 'plupload-html4'), '1.5.7' );
+	$scripts->add( 'plupload-all', false, array('plupload', 'plupload-html5', 'plupload-silverlight', 'plupload-html4'), '1.5.7' );
 
 	$scripts->add( 'plupload-handlers', "/wp-includes/js/plupload/handlers$suffix.js", array('plupload-all', 'jquery') );
 	did_action( 'init' ) && $scripts->localize( 'plupload-handlers', 'pluploadL10n', $uploader_l10n );