--- a/taskcluster/ci/test/test-sets.yml
+++ b/taskcluster/ci/test/test-sets.yml
@@ -92,17 +92,17 @@ windows-vm-tests:
     #- marionette
     #- mochitest
     #- mochitest-browser-chrome
     - mochitest-devtools-chrome
     - mochitest-jetpack
     #- mochitest-media
     #- web-platform-tests
     - web-platform-tests-reftests
-    #- xpcshell
+    - xpcshell
 
 # windows-gpu-tests:
 #    - reftest
 #    - reftest-no-accel
 #    - mochitest-webgl
 
 # these tests currently run on hardware, but may migrate above when validated
 # note: on win, mochitest-a11y and mochitest-chrome come under mochitest-other