diff --git a/reactos/boot/freeldr/freeldr/include/ui.h b/reactos/boot/freeldr/freeldr/include/ui.h
index b29f41feeeb..d531448d3af 100644
--- a/reactos/boot/freeldr/freeldr/include/ui.h
+++ b/reactos/boot/freeldr/freeldr/include/ui.h
@@ -66,7 +66,7 @@ VOID    UiDrawCenteredText(ULONG Left, ULONG Top, ULONG Right, ULONG Bottom, PCS
 VOID    UiDrawStatusText(PCSTR StatusText);                    // Draws text at the very bottom line on the screen
 VOID    UiUpdateDateTime(VOID);                                    // Updates the date and time
 VOID    UiInfoBox(PCSTR MessageText);                            // Displays a info box on the screen
-VOID    UiMessageBox(PCSTR MessageText);                        // Displays a message box on the screen with an ok button
+VOID    UiMessageBox(PCSTR Format, ...);                        // Displays a message box on the screen with an ok button
 VOID    UiMessageBoxCritical(PCSTR MessageText);                // Displays a message box on the screen with an ok button using no system resources
 VOID    UiDrawProgressBarCenter(ULONG Position, ULONG Range, PCHAR ProgressText);            // Draws the progress bar showing nPos percent filled
 VOID    UiDrawProgressBar(ULONG Left, ULONG Top, ULONG Right, ULONG Bottom, ULONG Position, ULONG Range, PCHAR ProgressText);            // Draws the progress bar showing nPos percent filled
diff --git a/reactos/boot/freeldr/freeldr/ui/ui.c b/reactos/boot/freeldr/freeldr/ui/ui.c
index 63ea0a6930d..140c1134984 100644
--- a/reactos/boot/freeldr/freeldr/ui/ui.c
+++ b/reactos/boot/freeldr/freeldr/ui/ui.c
@@ -344,9 +344,15 @@ VOID UiInfoBox(PCSTR MessageText)
     UiDrawCenteredText(Left, Top, Right, Bottom, MessageText, ATTR(UiTextColor, UiMenuBgColor));
 }
 
-VOID UiMessageBox(PCSTR MessageText)
+VOID UiMessageBox(PCSTR Format, ...)
 {
-    UiVtbl.MessageBox(MessageText);
+    CHAR Buffer[256];
+    va_list ap;
+
+    va_start(ap, Format);
+    vsnprintf(Buffer, sizeof(Buffer) - sizeof(CHAR), Format, ap);
+    UiVtbl.MessageBox(Buffer);
+    va_end(ap);
 }
 
 VOID UiMessageBoxCritical(PCSTR MessageText)
diff --git a/reactos/boot/freeldr/freeldr/windows/winldr.c b/reactos/boot/freeldr/freeldr/windows/winldr.c
index c3661d9b389..c43e2122d58 100644
--- a/reactos/boot/freeldr/freeldr/windows/winldr.c
+++ b/reactos/boot/freeldr/freeldr/windows/winldr.c
@@ -325,7 +325,8 @@ WinLdrLoadBootDrivers(PLOADER_PARAMETER_BLOCK LoaderBlock,
         //FIXME: Maybe remove it from the list and try to continue?
         if (!Status)
         {
-            UiMessageBox("Can't load boot driver!");
+            ERR("Can't load boot driver '%wZ'!", &BootDriver->FilePath);
+            UiMessageBox("Can't load boot driver '%wZ'!", &BootDriver->FilePath);
             return FALSE;
         }
 
diff --git a/reactos/boot/freeldr/freeldr/windows/wlregistry.c b/reactos/boot/freeldr/freeldr/windows/wlregistry.c
index bd9e75e40ea..c9b35283da5 100644
--- a/reactos/boot/freeldr/freeldr/windows/wlregistry.c
+++ b/reactos/boot/freeldr/freeldr/windows/wlregistry.c
@@ -538,9 +538,9 @@ WinLdrScanRegistry(IN OUT PLIST_ENTRY BootDriverListHead,
                 /* Get the Driver's Name */
                 ValueSize = sizeof(ServiceName);
                 rc = RegEnumKey(hServiceKey, Index, ServiceName, &ValueSize);
-                //TRACE_CH(REACTOS, "RegEnumKey(): rc %d\n", (int)rc);
+                TRACE("RegEnumKey(): rc %d\n", (int)rc);
 
-                /* Makre sure it's valid, and check if we're done */
+                /* Make sure it's valid, and check if we're done */
                 if (rc == ERROR_NO_MORE_ITEMS)
                     break;
                 if (rc != ERROR_SUCCESS)
@@ -627,7 +627,7 @@ WinLdrScanRegistry(IN OUT PLIST_ENTRY BootDriverListHead,
                 FrLdrHeapFree(GroupNameBuffer, TAG_WLDR_NAME);
                 return;
             }
-            //TRACE_CH(REACTOS, "Service %d: '%S'\n", (int)Index, ServiceName);
+            TRACE("Service %d: '%S'\n", (int)Index, ServiceName);
 
             /* open driver Key */
             rc = RegOpenKey(hServiceKey, ServiceName, &hDriverKey);