diff --git a/sdk/xtdk/bltypes.h b/sdk/xtdk/bltypes.h
index 6113562..1c5149a 100644
--- a/sdk/xtdk/bltypes.h
+++ b/sdk/xtdk/bltypes.h
@@ -66,6 +66,7 @@ typedef VOID (*PBL_BOOTMENU_INITIALIZE_OS_LIST)(OUT PXTBL_BOOTMENU_ITEM MenuEntr
 typedef EFI_STATUS (*PBL_BOOTPROTO_BOOT_SYSTEM)(IN PXTBL_BOOT_PARAMETERS Parameters);
 typedef EFI_STATUS (*PBL_CLOSE_VOLUME)(IN PEFI_HANDLE VolumeHandle);
 typedef VOID (*PBL_CLEAR_CONSOLE_LINE)(IN ULONGLONG LineNo);
+typedef EFI_STATUS (*PBL_CLOSE_XT_PROTOCOL)(IN PEFI_HANDLE Handle, IN PEFI_GUID ProtocolGuid);
 typedef VOID (*PBL_CONSOLE_CLEAR_SCREEN)();
 typedef VOID (*PBL_CONSOLE_DISABLE_CURSOR)();
 typedef VOID (*PBL_CONSOLE_ENABLE_CURSOR)();
@@ -89,12 +90,12 @@ typedef EFI_STATUS (*PBL_FREE_POOL)(IN PVOID Memory);
 typedef EFI_STATUS (*PBL_GET_MEMORY_MAP)(OUT PEFI_MEMORY_MAP MemoryMap);
 typedef PLIST_ENTRY (*PBL_GET_MODULES_LIST)();
 typedef INT_PTR (*PBL_GET_SECURE_BOOT_STATUS)();
+typedef EFI_STATUS (*PBL_INSTALL_XT_PROTOCOL)(IN PVOID Interface, IN PEFI_GUID Guid);
 typedef EFI_STATUS (*PBL_INVOKE_BOOT_PROTOCOL)(IN PLIST_ENTRY OptionsList);
 typedef EFI_STATUS (*PBL_OPEN_VOLUME)(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath, OUT PEFI_HANDLE DiskHandle, OUT PEFI_FILE_HANDLE *FsHandle);
-typedef EFI_STATUS (*PBL_OPEN_XT_PROTOCOL)(OUT PVOID *ProtocolHandler, IN PEFI_GUID ProtocolGuid);
+typedef EFI_STATUS (*PBL_OPEN_XT_PROTOCOL)(OUT PEFI_HANDLE Handle, OUT PVOID *ProtocolHandler, IN PEFI_GUID ProtocolGuid);
 typedef EFI_STATUS (*PBL_READ_FILE)(IN PEFI_FILE_HANDLE DirHandle, IN CONST PWCHAR FileName, OUT PVOID *FileData, OUT PSIZE_T FileSize);
 typedef EFI_STATUS (*PBL_REGISTER_BOOT_PROTOCOL)(IN PWCHAR SystemType, IN PEFI_GUID BootProtocolGuid);
-typedef EFI_STATUS (*PBL_REGISTER_XT_PROTOCOL)(IN PEFI_GUID Guid, IN PVOID Interface);
 typedef VOID (*PBL_REGISTER_XT_BOOT_MENU)(PVOID BootMenuRoutine);
 typedef VOID (*PBL_SLEEP_EXECUTION)(IN ULONG_PTR Milliseconds);
 typedef VOID (*PBL_TUI_DISPLAY_ERROR_DIALOG)(IN PWCHAR Caption, IN PWCHAR Message);
@@ -258,8 +259,9 @@ typedef struct _XTBL_LOADER_PROTOCOL
     } Memory;
     struct
     {
+        PBL_CLOSE_XT_PROTOCOL Close;
         PBL_GET_MODULES_LIST GetModulesList;
-        PBL_REGISTER_XT_PROTOCOL Install;
+        PBL_INSTALL_XT_PROTOCOL Install;
         PBL_OPEN_XT_PROTOCOL Open;
     } Protocol;
     struct
diff --git a/xtldr/includes/xtldr.h b/xtldr/includes/xtldr.h
index 7a3c4a1..bcb9a49 100644
--- a/xtldr/includes/xtldr.h
+++ b/xtldr/includes/xtldr.h
@@ -174,7 +174,8 @@ BlOpenVolume(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath,
 
 XTCDECL
 EFI_STATUS
-BlOpenProtocol(OUT PVOID *ProtocolHandler,
+BlOpenProtocol(OUT PEFI_HANDLE Handle,
+               OUT PVOID *ProtocolHandler,
                IN PEFI_GUID ProtocolGuid);
 
 XTCDECL
@@ -204,8 +205,8 @@ BlRegisterBootProtocol(IN PWCHAR SystemType,
 
 XTCDECL
 EFI_STATUS
-BlInstallProtocol(IN PEFI_GUID Guid,
-                   IN PVOID Interface);
+BlInstallProtocol(IN PVOID Interface,
+                  IN PEFI_GUID Guid);
 
 XTCDECL
 VOID
diff --git a/xtldr/modules/dummy/dummy.c b/xtldr/modules/dummy/dummy.c
index b68dbc7..a0af50d 100644
--- a/xtldr/modules/dummy/dummy.c
+++ b/xtldr/modules/dummy/dummy.c
@@ -56,5 +56,5 @@ XtLdrModuleMain(IN EFI_HANDLE ImageHandle,
     XtLdrProto->Boot.RegisterProtocol(L"XTOS", &DummyGuid);
 
     /* Register DUMMY protocol as XTOS boot protocol */
-    return XtLdrProto->Protocol.Install(&DummyGuid, &BlpDummyProtocol);
+    return XtLdrProto->Protocol.Install(&BlpDummyProtocol, &DummyGuid);
 }
diff --git a/xtldr/modules/fb_o/framebuf.c b/xtldr/modules/fb_o/framebuf.c
index 769da90..703e56e 100644
--- a/xtldr/modules/fb_o/framebuf.c
+++ b/xtldr/modules/fb_o/framebuf.c
@@ -88,6 +88,7 @@ FbInitializeDisplay()
     EFI_GUID GopGuid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID;
     EFI_GUID UgaGuid = EFI_UNIVERSAL_GRAPHICS_ADAPTER_PROTOCOL_GUID;
     UINT32 Parameter1, Parameter2;
+    EFI_HANDLE Handle;
     EFI_STATUS Status;
 
     /* Check if framebuffer already initialized */
@@ -99,7 +100,7 @@ FbInitializeDisplay()
         FrameBufferInfo.Initialized = FALSE;
 
         /* Attempt to open GOP protocol */
-        Status = XtLdrProtocol->Protocol.Open((PVOID*)&FrameBufferInfo.Adapter.GOP, &GopGuid);
+        Status = XtLdrProtocol->Protocol.Open(&Handle, (PVOID*)&FrameBufferInfo.Adapter.GOP, &GopGuid);
 
         /* Check if Graphics Output Protocol is available */
         if(Status == STATUS_EFI_SUCCESS)
@@ -119,6 +120,9 @@ FbInitializeDisplay()
             FrameBufferInfo.FrameBufferSize = FrameBufferInfo.Adapter.GOP->Mode->FrameBufferSize;
             FrameBufferInfo.Protocol = GOP;
             FrameBufferInfo.Initialized = TRUE;
+
+            /* Close GOP protocol */
+            Status = XtLdrProtocol->Protocol.Close(Handle, &GopGuid);
         }
         else
         {
@@ -126,7 +130,7 @@ FbInitializeDisplay()
             FrameBufferInfo.Adapter.GOP = NULL;
 
             /* Attempt to open UGA protocol */
-            Status = XtLdrProtocol->Protocol.Open((PVOID*)&FrameBufferInfo.Adapter.UGA, &UgaGuid);
+            Status = XtLdrProtocol->Protocol.Open(&Handle, (PVOID*)&FrameBufferInfo.Adapter.UGA, &UgaGuid);
 
             /* Check if Universal Graphics Adapter is available */
             if(Status == STATUS_EFI_SUCCESS)
@@ -162,6 +166,9 @@ FbInitializeDisplay()
                     /* Temporarily set this to FALSE, as we don't set FB base and we cannot use it anyway */
                     FrameBufferInfo.Initialized = FALSE;
                 }
+
+                /* Close UGA protocol */
+                XtLdrProtocol->Protocol.Close(Handle, &UgaGuid);
             }
         }
 
@@ -251,5 +258,5 @@ XtLdrModuleMain(IN EFI_HANDLE ImageHandle,
     XtFramebufferProtocol.PrintDisplayInformation = FbPrintDisplayInformation;
 
     /* Register XTOS boot protocol */
-    return XtLdrProtocol->Protocol.Install(&Guid, &XtFramebufferProtocol);
+    return XtLdrProtocol->Protocol.Install(&XtFramebufferProtocol, &Guid);
 }
diff --git a/xtldr/modules/pecoff_o/pecoff.c b/xtldr/modules/pecoff_o/pecoff.c
index 2c48a2e..36ff2f4 100644
--- a/xtldr/modules/pecoff_o/pecoff.c
+++ b/xtldr/modules/pecoff_o/pecoff.c
@@ -603,5 +603,5 @@ XtLdrModuleMain(IN EFI_HANDLE ImageHandle,
     XtPeCoffProtocol.RelocateImage = PeRelocateImage;
 
     /* Register PE/COFF protocol */
-    return XtLdrProtocol->Protocol.Install(&Guid, &XtPeCoffProtocol);
+    return XtLdrProtocol->Protocol.Install(&XtPeCoffProtocol, &Guid);
 }
diff --git a/xtldr/modules/xtos_o/xtos.c b/xtldr/modules/xtos_o/xtos.c
index f7248dc..3393367 100644
--- a/xtldr/modules/xtos_o/xtos.c
+++ b/xtldr/modules/xtos_o/xtos.c
@@ -40,7 +40,7 @@ EFI_STATUS
 XtBootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
 {
     EFI_GUID PeCoffProtocolGuid = XT_PECOFF_IMAGE_PROTOCOL_GUID;
-    EFI_HANDLE DiskHandle;
+    EFI_HANDLE DiskHandle, ProtocolHandle;
     PEFI_FILE_HANDLE FsHandle, BootDir;
     PWCHAR SystemPath;
     EFI_STATUS Status;
@@ -49,7 +49,7 @@ XtBootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
     XtLdrProtocol->Debug.Print(L"XTOS boot protocol activated\n");
 
     /* Open the XT PE/COFF protocol */
-    Status = XtLdrProtocol->Protocol.Open((PVOID *)&XtPeCoffProtocol, &PeCoffProtocolGuid);
+    Status = XtLdrProtocol->Protocol.Open(&ProtocolHandle, (PVOID *)&XtPeCoffProtocol, &PeCoffProtocolGuid);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Failed to open loader protocol */
@@ -183,6 +183,7 @@ XtpBootSequence(IN PEFI_FILE_HANDLE BootDir,
     PVOID VirtualAddress, VirtualMemoryArea;
     PXT_ENTRY_POINT KernelEntryPoint;
     LIST_ENTRY MemoryMappings;
+    EFI_HANDLE ProtocolHandle;
     EFI_STATUS Status;
 
     /* Initialize XTOS startup sequence */
@@ -250,7 +251,7 @@ XtpBootSequence(IN PEFI_FILE_HANDLE BootDir,
     BootDir->Close(BootDir);
 
     /* Enable paging */
-    XtLdrProtocol->Protocol.Open((PVOID*)&ImageProtocol, &LoadedImageGuid);
+    XtLdrProtocol->Protocol.Open(&ProtocolHandle, (PVOID*)&ImageProtocol, &LoadedImageGuid);
     Status = XtEnablePaging(&MemoryMappings, VirtualAddress, ImageProtocol, &XtPageMap);
     if(Status != STATUS_EFI_SUCCESS)
     {
@@ -333,6 +334,7 @@ XtpInitializeLoaderBlock(IN PLIST_ENTRY MemoryMappings,
     EFI_PHYSICAL_ADDRESS Address;
     // PVOID RuntimeServices;
     EFI_STATUS Status;
+    EFI_HANDLE ProtocolHandle;
     UINT BlockPages, FrameBufferPages;
 
     /* Calculate number of pages needed for initialization block */
@@ -359,7 +361,7 @@ XtpInitializeLoaderBlock(IN PLIST_ENTRY MemoryMappings,
     LoaderBlock->LoaderInformation.DbgPrint = XtLdrProtocol->Debug.Print;
 
     /* Load FrameBuffer protocol */
-    Status = XtLdrProtocol->Protocol.Open((PVOID*)&FrameBufProtocol, &FrameBufGuid);
+    Status = XtLdrProtocol->Protocol.Open(&ProtocolHandle, (PVOID*)&FrameBufProtocol, &FrameBufGuid);
     if(Status == STATUS_EFI_SUCCESS)
     {
         /* Make sure FrameBuffer is initialized */
@@ -375,6 +377,9 @@ XtpInitializeLoaderBlock(IN PLIST_ENTRY MemoryMappings,
         LoaderBlock->LoaderInformation.FrameBuffer.Protocol = NONE;
     }
 
+    /* Close FrameBuffer protocol */
+    XtLdrProtocol->Protocol.Close(ProtocolHandle, &FrameBufGuid);
+
     /* Attempt to find virtual address of the EFI Runtime Services */
     // Status = XtLdrProtocol->GetVirtualAddress(MemoryMappings, &EfiSystemTable->RuntimeServices->Hdr, &RuntimeServices);
     // if(Status == STATUS_EFI_SUCCESS)
@@ -542,5 +547,5 @@ XtLdrModuleMain(IN EFI_HANDLE ImageHandle,
     XtLdrProtocol->Boot.RegisterProtocol(L"XTOS", &Guid);
 
     /* Install XTOS protocol */
-    return XtLdrProtocol->Protocol.Install(&Guid, &XtBootProtocol);
+    return XtLdrProtocol->Protocol.Install(&XtBootProtocol, &Guid);
 }
diff --git a/xtldr/protocol.c b/xtldr/protocol.c
index 7306f25..fc71f1f 100644
--- a/xtldr/protocol.c
+++ b/xtldr/protocol.c
@@ -9,6 +9,27 @@
 #include <xtldr.h>
 
 
+/**
+ * Closes a protocol on a provided handle.
+ *
+ * @param Handle
+ *        Supplies a handle for the protocol interface that was previously opened.
+ *
+ * @param ProtocolGuid
+ *        Supplies a unique protocol GUID.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+BlCloseProtocol(IN PEFI_HANDLE Handle,
+                IN PEFI_GUID ProtocolGuid)
+{
+    return EfiSystemTable->BootServices->CloseProtocol(Handle, ProtocolGuid, EfiImageHandle, NULL);
+}
+
 /**
  * Finds a boot protocol for specified system type.
  *
@@ -69,6 +90,30 @@ BlGetModulesList()
     return &BlpLoadedModules;
 }
 
+/**
+ * Installs XTLDR protocol interface.
+ *
+ * @param Guid
+ *        Specifies a unique protocol GUID.
+ *
+ * @param Interface
+ *        Supplies a pointer to the protocol interface, or NULL if there is no structure associated.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+BlInstallProtocol(IN PVOID Interface,
+                  IN PEFI_GUID Guid)
+{
+    EFI_HANDLE Handle = NULL;
+
+    /* Install protocol interface */
+    return EfiSystemTable->BootServices->InstallProtocolInterface(&Handle, Guid, EFI_NATIVE_INTERFACE, Interface);
+}
+
 /**
  * Loads a specified XTLDR module from disk.
  *
@@ -355,6 +400,9 @@ BlLoadModules(IN PWCHAR ModulesList)
 /**
  * This routine locates and opens the requested XT Boot Loader or EFI protocol.
  *
+ * @param Handle
+ *        Supplies the address where a pointer to the handle for the protocol interface.
+ *
  * @param ProtocolHandler
  *        Supplies the address where a pointer to the opened protocol is returned.
  *
@@ -367,7 +415,8 @@ BlLoadModules(IN PWCHAR ModulesList)
  */
 XTCDECL
 EFI_STATUS
-BlOpenProtocol(OUT PVOID *ProtocolHandler,
+BlOpenProtocol(OUT PEFI_HANDLE Handle,
+               OUT PVOID *ProtocolHandler,
                IN PEFI_GUID ProtocolGuid)
 {
     PEFI_HANDLE Handles = NULL;
@@ -398,6 +447,7 @@ BlOpenProtocol(OUT PVOID *ProtocolHandler,
             if(Status == STATUS_EFI_SUCCESS)
             {
                 /* Protocol found and successfully opened */
+                *Handle = Handles[Index];
                 break;
             }
         }
@@ -491,30 +541,6 @@ BlRegisterBootProtocol(IN PWCHAR SystemType,
     return STATUS_EFI_SUCCESS;
 }
 
-/**
- * Installs XTLDR protocol interface.
- *
- * @param Guid
- *        Specifies a unique protocol GUID.
- *
- * @param Interface
- *        Supplies a pointer to the protocol interface, or NULL if there is no structure associated.
- *
- * @return This routine returns a status code.
- *
- * @since XT 1.0
- */
-XTCDECL
-EFI_STATUS
-BlInstallProtocol(IN PEFI_GUID Guid,
-                   IN PVOID Interface)
-{
-    EFI_HANDLE Handle = NULL;
-
-    /* Install protocol interface */
-    return EfiSystemTable->BootServices->InstallProtocolInterface(&Handle, Guid, EFI_NATIVE_INTERFACE, Interface);
-}
-
 /**
  * This routine installs XTLDR protocol for further usage by modules.
  *
@@ -554,6 +580,7 @@ BlpInstallXtLoaderProtocol()
     BlpLdrProtocol.Memory.FreePages = BlMemoryFreePages;
     BlpLdrProtocol.Memory.FreePool = BlMemoryFreePool;
     BlpLdrProtocol.Memory.GetMemoryMap = BlGetMemoryMap;
+    BlpLdrProtocol.Protocol.Close = BlCloseProtocol;
     BlpLdrProtocol.Protocol.GetModulesList = BlGetModulesList;
     BlpLdrProtocol.Protocol.Open = BlOpenProtocol;
     BlpLdrProtocol.Protocol.Install = BlInstallProtocol;
@@ -569,5 +596,5 @@ BlpInstallXtLoaderProtocol()
 
     /* Register XTLDR loader protocol */
     BlDebugPrint(L"Registering XT loader protocol\n");
-    return BlInstallProtocol(&Guid, &BlpLdrProtocol);
+    return BlInstallProtocol(&BlpLdrProtocol, &Guid);
 }
diff --git a/xtldr/xtldr.c b/xtldr/xtldr.c
index bc23020..33cd8bf 100644
--- a/xtldr/xtldr.c
+++ b/xtldr/xtldr.c
@@ -22,6 +22,7 @@ BlInitializeBootLoader()
 {
     EFI_GUID LipGuid = EFI_LOADED_IMAGE_PROTOCOL_GUID;
     PEFI_LOADED_IMAGE_PROTOCOL LoadedImage;
+    EFI_HANDLE Handle;
     EFI_STATUS Status;
 
     /* Set current XTLDR's EFI BootServices status */
@@ -45,7 +46,7 @@ BlInitializeBootLoader()
     if(DEBUG)
     {
         /* Attempt to open EFI LoadedImage protocol */
-        Status = BlOpenProtocol((PVOID *)&LoadedImage, &LipGuid);
+        Status = BlOpenProtocol(&Handle, (PVOID *)&LoadedImage, &LipGuid);
         if(Status == STATUS_EFI_SUCCESS)
         {
             /* Protocol opened successfully, print useful debug information */
@@ -172,6 +173,7 @@ BlInvokeBootProtocol(IN PLIST_ENTRY OptionsList)
     EFI_GUID BootProtocolGuid;
     SIZE_T ModuleListLength;
     PWCHAR ModulesList;
+    EFI_HANDLE Handle;
     EFI_STATUS Status;
 
     /* Initialize boot parameters and a list of modules */
@@ -262,7 +264,7 @@ BlInvokeBootProtocol(IN PLIST_ENTRY OptionsList)
     }
 
     /* Open boot protocol */
-    Status = BlOpenProtocol((PVOID *)&BootProtocol, &BootProtocolGuid);
+    Status = BlOpenProtocol(&Handle, (PVOID *)&BootProtocol, &BootProtocolGuid);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Failed to open boot protocol */