Index: installer/install-multi-arch.iss
===================================================================
--- installer/install-multi-arch.iss	(revision 16868)
+++ installer/install-multi-arch.iss	(working copy)
@@ -162,7 +162,7 @@
 Name: {group}\OpenMPT; Filename: {app}\bin\arm64\OpenMPT.exe; Check: CheckDefaultArch('arm64')
 
 Name: {group}\OpenMPT (x86); Filename: {app}\bin\x86\OpenMPT.exe; Components: archx86
-Name: {group}\OpenMPT (amd64); Filename: {app}\bin\amd64\OpenMPT.exe; Components: archamd64
+Name: {group}\OpenMPT (x86-64); Filename: {app}\bin\amd64\OpenMPT.exe; Components: archamd64
 Name: {group}\OpenMPT (arm); Filename: {app}\bin\arm\OpenMPT.exe; Components: archarm
 Name: {group}\OpenMPT (arm64); Filename: {app}\bin\arm64\OpenMPT.exe; Components: archarm64
 
Index: misc/mptOS.cpp
===================================================================
--- misc/mptOS.cpp	(revision 16868)
+++ misc/mptOS.cpp	(working copy)
@@ -240,7 +240,7 @@
 };
 static constexpr ArchitectureInfo architectureInfo [] = {
 	{ Architecture::x86    , 32, UL_("x86")     },
-	{ Architecture::amd64  , 64, UL_("amd64")   },
+	{ Architecture::amd64  , 64, UL_("x86-64")  },
 	{ Architecture::arm    , 32, UL_("arm")     },
 	{ Architecture::arm64  , 64, UL_("arm64")   },
 	{ Architecture::mips   , 32, UL_("mips")    },
Index: mptrack/AboutDialog.cpp
===================================================================
--- mptrack/AboutDialog.cpp	(revision 16868)
+++ mptrack/AboutDialog.cpp	(working copy)
@@ -304,7 +304,7 @@
 	features.push_back(U_("x86"));
 #endif
 #if defined(MPT_ENABLE_ARCH_AMD64)
-	features.push_back(U_("amd64"));
+	features.push_back(U_("x86-64"));
 #endif
 	struct ProcFlag
 	{
Index: soundlib/plugins/PluginManager.cpp
===================================================================
--- soundlib/plugins/PluginManager.cpp	(revision 16868)
+++ soundlib/plugins/PluginManager.cpp	(working copy)
@@ -141,7 +141,7 @@
 			result = U_("x86 (32bit)");
 			break;
 		case PluginArch_amd64:
-			result = U_("amd64 (64bit)");
+			result = U_("x86-64 (64bit)");
 			break;
 		case PluginArch_arm:
 			result = U_("arm (32bit)");