diff --git a/src/runtime/defs_windows_arm.go b/src/runtime/defs_windows_arm.go
index 4021f77ba8..370470e35d 100644
--- a/src/runtime/defs_windows_arm.go
+++ b/src/runtime/defs_windows_arm.go
@@ -4,7 +4,13 @@
 
 package runtime
 
-const _CONTEXT_CONTROL = 0x10001
+// NOTE(rsc): _CONTEXT_CONTROL is actually 0x200001 and should include PC, SP, and LR.
+// However, empirically, LR doesn't come along on Windows 10
+// unless you also set _CONTEXT_INTEGER (0x200002).
+// Without LR, we skip over the next-to-bottom function in profiles
+// when the bottom function is frameless.
+// So we set both here, to make a working _CONTEXT_CONTROL.
+const _CONTEXT_CONTROL = 0x200003
 
 type neon128 struct {
 	low  uint64
diff --git a/src/runtime/pprof/pprof_test.go b/src/runtime/pprof/pprof_test.go
index 37f12de0d9..f7c1349bc6 100644
--- a/src/runtime/pprof/pprof_test.go
+++ b/src/runtime/pprof/pprof_test.go
@@ -285,10 +285,6 @@ func testCPUProfile(t *testing.T, matches matchFunc, need []string, avoid []stri
 		if runtime.GOARCH == "arm" || runtime.GOARCH == "arm64" {
 			broken = true
 		}
-	case "windows":
-		if runtime.GOARCH == "arm" {
-			broken = true // See https://golang.org/issues/42862
-		}
 	}
 
 	maxDuration := 5 * time.Second