diff --git a/runners/windows/windowsrunner.cpp b/runners/windows/windowsrunner.cpp
--- a/runners/windows/windowsrunner.cpp
+++ b/runners/windows/windowsrunner.cpp
@@ -70,7 +70,6 @@
 // Called in the main thread
 void WindowsRunner::gatherInfo()
 {
-    QMutexLocker locker(&m_mutex);
     if (!m_inSession) {
         return;
     }
@@ -102,12 +101,16 @@
     }
 
     m_ready = true;
+
+    // unlock lock locked in prepareForMatchSession
+    m_mutex.unlock();
 }
 
 // Called in the main thread
 void WindowsRunner::prepareForMatchSession()
 {
-    QMutexLocker locker(&m_mutex);
+    // gatherInfo will unlock the lock
+    m_mutex.lock();
     m_inSession = true;
     m_ready = false;
     QTimer::singleShot(0, this, &WindowsRunner::gatherInfo);
@@ -127,6 +130,7 @@
 // Called in the secondary thread
 void WindowsRunner::match(Plasma::RunnerContext& context)
 {
+    // will run block as long as gatherInfo as not finished
     QMutexLocker locker(&m_mutex);
     if (!m_ready) {
         return;