--- a/testing/talos/talos/tests/video/video_playback.html
+++ b/testing/talos/talos/tests/video/video_playback.html
@@ -40,20 +40,16 @@ function fullscreen(event) {
       document.mozFullScreen) {
     startTest();
   } else {
     nextTest();
   }
 }
 
 function runTest() {
-  // Windows XP cannot play mp4 clip due to the lack of gmp-eme-plugin, so skip it.
-  if (window.navigator.oscpu == 'Windows NT 5.1' && test[testIndex].indexOf('mp4') >= 0) {
-    nextTest();
-  }
   vdo.setAttribute('src', 'clips/' + test[testIndex]);
   vdo.load();
 }
 
 function prepare() {
   if (viewMode[viewModeIndex] == 'fullscreen') {
     // Fullscreen mode
     vdo.setAttribute('width', '100%');

--- a/testing/talos/talos/utils.py
+++ b/testing/talos/talos/utils.py
@@ -22,19 +22,17 @@ LOG = get_proxy_logger()
 
 def _get_platform():
     # get the platform we're interested in. Note that the values
     # are used in TTest historically, this is why they are not really friendly.
     # TODO: give some user friendly values
     if platform.system() == "Linux":
         return 'linux_'
     elif platform.system() in ("Windows", "Microsoft"):
-        if '5.1' in platform.version():  # winxp
-            return 'win_'
-        elif '6.1' in platform.version():  # w7
+        if '6.1' in platform.version():  # w7
             return 'w7_'
         elif '6.2' in platform.version():  # w8
             return 'w8_'
         # Bug 1264325 - FIXME: with python 2.7.11: reports win8 instead of 8.1
         elif '6.3' in platform.version():
             return 'w8_'
         # Bug 1264325 - FIXME: with python 2.7.11: reports win8 instead of 10
         elif '10.0' in platform.version():