Index: /trunk/src/VBox/Runtime/r3/win/thread-win.cpp
===================================================================
--- /trunk/src/VBox/Runtime/r3/win/thread-win.cpp	(revision 75881)
+++ /trunk/src/VBox/Runtime/r3/win/thread-win.cpp	(revision 75882)
@@ -415,5 +415,5 @@
         if (NT_SUCCESS(rcNt))
             return VINF_SUCCESS;
-        return RTErrConvertFromErrno(rcNt);
+        return RTErrConvertFromNtStatus(rcNt);
     }
     return VERR_NOT_IMPLEMENTED;