diff --git a/reactos/sdk/include/psdk/regstr.h b/reactos/sdk/include/psdk/regstr.h
index 88f4c7e85cf..19e37427cac 100644
--- a/reactos/sdk/include/psdk/regstr.h
+++ b/reactos/sdk/include/psdk/regstr.h
@@ -756,9 +756,7 @@ extern "C" {
 #define REGSTR_VAL_SYSTEMBUSNUMBER TEXT("SystemBusNumber")
 #define REGSTR_VAL_BUSDATATYPE TEXT("BusDataType")
 #define REGSTR_VAL_INTERFACETYPE TEXT("InterfaceType")
-#define REGSTR_VAL_SERVICE TEXT("Service")
 #define REGSTR_VAL_DETECTSIGNATURE TEXT("DetectSignature")
-#define REGSTR_VAL_CLASSGUID TEXT("ClassGUID")
 #define REGSTR_VAL_INSTANCEIDENTIFIER TEXT("InstanceIdentifier")
 #define REGSTR_VAL_DUPLICATEOF TEXT("DuplicateOf")
 #define REGSTR_VAL_STATUSFLAGS TEXT("StatusFlags")
@@ -770,10 +768,6 @@ extern "C" {
 #define REGSTR_VAL_DEVICE_INSTANCE TEXT("DeviceInstance")
 #define REGSTR_VAL_SYMBOLIC_LINK TEXT("SymbolicLink")
 #define REGSTR_VAL_DEFAULT TEXT("Default")
-#define REGSTR_VAL_LOWERFILTERS TEXT("LowerFilters")
-#define REGSTR_VAL_UPPERFILTERS TEXT("UpperFilters")
-#define REGSTR_VAL_LOCATION_INFORMATION TEXT("LocationInformation")
-#define REGSTR_VAL_UI_NUMBER TEXT("UINumber")
 #define REGSTR_VAL_UI_NUMBER_DESC_FORMAT TEXT("UINumberDescFormat")
 #define REGSTR_VAL_CAPABILITIES TEXT("Capabilities")
 #define REGSTR_VAL_DEVICE_TYPE TEXT("DeviceType")