diff --git a/reactos/base/system/winlogon/lang/pt-BR.rc b/reactos/base/system/winlogon/lang/pt-BR.rc
index 73099a20146..e77efcdf599 100644
--- a/reactos/base/system/winlogon/lang/pt-BR.rc
+++ b/reactos/base/system/winlogon/lang/pt-BR.rc
@@ -14,7 +14,7 @@ END
 
 IDD_GINALOADFAILED DIALOGEX 58, 83, 231, 119
 STYLE DS_SHELLFONT | DS_MODALFRAME | DS_CENTER | WS_POPUP | WS_VISIBLE | WS_CAPTION | WS_SYSMENU
-CAPTION "Falha Inteface de Usuário"
+CAPTION "Falha Interface de Usuário"
 FONT 8, "MS Shell Dlg"
 BEGIN
     LTEXT "A DLL de Logon de Interface de Usuário %s falhou ao carregar.", IDC_GINALOADFAILED, 39, 16, 156, 24
diff --git a/reactos/drivers/bus/pcix/pci/config.c b/reactos/drivers/bus/pcix/pci/config.c
index def8ee4daf0..880d586393d 100644
--- a/reactos/drivers/bus/pcix/pci/config.c
+++ b/reactos/drivers/bus/pcix/pci/config.c
@@ -144,7 +144,7 @@ PciQueryForPciBusInterface(IN PPCI_FDO_EXTENSION FdoExtension)
     PAGED_CODE();
     ASSERT(PCI_IS_ROOT_FDO(FdoExtension));
 
-    /* Allocate space for the inteface */
+    /* Allocate space for the interface */
     PciInterface = ExAllocatePoolWithTag(NonPagedPool,
                                          sizeof(PCI_BUS_INTERFACE_STANDARD),
                                          PCI_POOL_TAG);
diff --git a/reactos/drivers/usb/usbehci/hardware.cpp b/reactos/drivers/usb/usbehci/hardware.cpp
index 5b7f104b154..31c8c16781a 100644
--- a/reactos/drivers/usb/usbehci/hardware.cpp
+++ b/reactos/drivers/usb/usbehci/hardware.cpp
@@ -193,7 +193,7 @@ CUSBHardwareDevice::Initialize(
     Status = GetBusInterface(PhysicalDeviceObject, &m_BusInterface);
     if (!NT_SUCCESS(Status))
     {
-        DPRINT1("Failed to get BusInteface!\n");
+        DPRINT1("Failed to get BusInterface!\n");
         return Status;
     }
 
diff --git a/reactos/drivers/usb/usbohci/hardware.cpp b/reactos/drivers/usb/usbohci/hardware.cpp
index 710ef9f45eb..7d7169e5068 100644
--- a/reactos/drivers/usb/usbohci/hardware.cpp
+++ b/reactos/drivers/usb/usbohci/hardware.cpp
@@ -200,7 +200,7 @@ CUSBHardwareDevice::Initialize(
     Status = GetBusInterface(PhysicalDeviceObject, &BusInterface);
     if (!NT_SUCCESS(Status))
     {
-        DPRINT1("Failed to get BusInteface!\n");
+        DPRINT1("Failed to get BusInterface!\n");
         return Status;
     }
 
diff --git a/reactos/drivers/usb/usbuhci/hardware.cpp b/reactos/drivers/usb/usbuhci/hardware.cpp
index 1f84e0e5c8a..51358a6e406 100644
--- a/reactos/drivers/usb/usbuhci/hardware.cpp
+++ b/reactos/drivers/usb/usbuhci/hardware.cpp
@@ -220,7 +220,7 @@ CUSBHardwareDevice::Initialize(
     Status = GetBusInterface(PhysicalDeviceObject, &BusInterface);
     if (!NT_SUCCESS(Status))
     {
-        DPRINT1("Failed to get BusInteface!\n");
+        DPRINT1("Failed to get BusInterface!\n");
         return Status;
     }
 
@@ -623,7 +623,7 @@ CUSBHardwareDevice::InitializeController()
     Status = GetBusInterface(m_PhysicalDeviceObject, &BusInterface);
     if (!NT_SUCCESS(Status))
     {
-        DPRINT1("Failed to get BusInteface!\n");
+        DPRINT1("Failed to get BusInterface!\n");
         return Status;
     }
 
diff --git a/reactos/media/inf/kscaptur.inf b/reactos/media/inf/kscaptur.inf
index 26a0446faa0..3feb87b8760 100644
--- a/reactos/media/inf/kscaptur.inf
+++ b/reactos/media/inf/kscaptur.inf
@@ -592,6 +592,6 @@ PlugIn_IAMVideoControl="Обробник WDM Streaming-IAMVideoControl-Interface
 PlugIn_IVideoEncoder="Обробник WDM Streaming-IVideoEncoder-Interface"
 Plugin_IKsTopologyInfo="Обробник WDM Streaming-IKsTopologyInfo-Interface"
 Plugin_ICameraControl="Обробник WDM Streaming-ICameraControl-Interface"
-Plugin_IVideoProcAmp="Обробник WDM Streaming-IVideoProcAmp-Inteface"
+Plugin_IVideoProcAmp="Обробник WDM Streaming-IVideoProcAmp-Interface"
 Plugin_ISelector="Обробник WDM Streaming-ISelector-Interface"
 Plugin_PropertyObject="Обробник вузлів Interfaces-Aggregate"
diff --git a/reactos/sdk/include/ndk/pstypes.h b/reactos/sdk/include/ndk/pstypes.h
index 1d2649255c9..8e5fcfd26c5 100644
--- a/reactos/sdk/include/ndk/pstypes.h
+++ b/reactos/sdk/include/ndk/pstypes.h
@@ -1077,7 +1077,7 @@ typedef struct _ETHREAD
            ULONG OwnsSessionWorkingSetExclusive:1;
            ULONG OwnsSessionWorkingSetShared:1;
 #if (NTDDI_VERSION >= NTDDI_LONGHORN)
-           ULONG SupressSymbolLoad:1;
+           ULONG SuppressSymbolLoad:1;
            ULONG Spare1:3;
            ULONG PriorityRegionActive:4;
 #else
diff --git a/reactos/win32ss/gdi/gdi32/misc/gdientry.c b/reactos/win32ss/gdi/gdi32/misc/gdientry.c
index 0180298c04f..2ff32a8de66 100644
--- a/reactos/win32ss/gdi/gdi32/misc/gdientry.c
+++ b/reactos/win32ss/gdi/gdi32/misc/gdientry.c
@@ -1,7 +1,7 @@
 /*
  * COPYRIGHT:        See COPYING in the top level directory
  * PROJECT:          ReactOS GDI32
- * PURPOSE:          GDI DirectX inteface
+ * PURPOSE:          GDI DirectX interface
  * FILE:             win32ss/gdi/gdi32/misc/gdientry.c
  * PROGRAMERS:       Alex Ionescu (alex@relsoft.net)
  *                   Magnus Olsen (magnus@greatlord.com)