diff --git a/reactos/drivers/storage/class/disk/disk.c b/reactos/drivers/storage/class/disk/disk.c
index 214ed32b3fd..bdc18eef8b7 100644
--- a/reactos/drivers/storage/class/disk/disk.c
+++ b/reactos/drivers/storage/class/disk/disk.c
@@ -15,7 +15,7 @@
 #include <include/class2.h>
 #include <stdio.h>
 
-//#define NDEBUG
+#define NDEBUG
 #include <debug.h>
 
 #define IO_WRITE_CACHE_ENABLED  ((NTSTATUS)0x80040020L)
diff --git a/reactos/ntoskrnl/ke/clock.c b/reactos/ntoskrnl/ke/clock.c
index 7f67a5e35ac..ee4255f9eaa 100644
--- a/reactos/ntoskrnl/ke/clock.c
+++ b/reactos/ntoskrnl/ke/clock.c
@@ -111,7 +111,6 @@ KeSetSystemTime(IN PLARGE_INTEGER NewTime,
                 }
 
                 /* Insert it into our temporary list */
-                DPRINT1("Adding a timer!\n");
                 InsertTailList(&TempList, &Timer->TimerListEntry);
             }
         }
@@ -152,7 +151,6 @@ KeSetSystemTime(IN PLARGE_INTEGER NewTime,
             }
 
             /* Insert it into our temporary list */
-            DPRINT1("Adding a timer 2!\n");
             InsertTailList(&TempList2, &Timer->TimerListEntry);
         }