From 5f57286cdb17371098d3c0034a9bfa5ca17b9497 Mon Sep 17 00:00:00 2001
From: Wojtek Figat <wojtek@figat.pl>
Date: Fri, 7 Mar 2025 11:09:32 +0100
Subject: [PATCH] Fix Windows detection to use correct system version it was
 build for (eg. Win10 or Win7)

---
 .../Platform/Windows/WindowsPlatform.cpp      | 26 ++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

diff --git a/Source/Engine/Platform/Windows/WindowsPlatform.cpp b/Source/Engine/Platform/Windows/WindowsPlatform.cpp
index 20e17e800..1ac886afe 100644
--- a/Source/Engine/Platform/Windows/WindowsPlatform.cpp
+++ b/Source/Engine/Platform/Windows/WindowsPlatform.cpp
@@ -637,12 +637,32 @@ bool WindowsPlatform::Init()
         }
     }
 
-    // Check if can run Engine on current platform (requires Windows Vista SP1 or above)
-    if (!IsWindowsVistaSP1OrGreater() && !IsWindowsServer())
+    // Check if can run Engine on current platform
+#if WINVER >= 0x0A00
+    if (!IsWindows10OrGreater() && !IsWindowsServer())
     {
-        Platform::Fatal(TEXT("Flax Engine requires Windows Vista SP1 or higher."));
+        Platform::Fatal(TEXT("Flax Engine requires Windows 10 or higher."));
         return true;
     }
+#elif WINVER >= 0x0603
+    if (!IsWindows8Point1OrGreater() && !IsWindowsServer())
+    {
+        Platform::Fatal(TEXT("Flax Engine requires Windows 8.1 or higher."));
+        return true;
+    }
+#elif WINVER >= 0x0602
+    if (!IsWindows8OrGreater() && !IsWindowsServer())
+    {
+        Platform::Fatal(TEXT("Flax Engine requires Windows 8 or higher."));
+        return true;
+    }
+#else
+    if (!IsWindows7OrGreater() && !IsWindowsServer())
+    {
+        Platform::Fatal(TEXT("Flax Engine requires Windows 7 or higher."));
+        return true;
+    }
+#endif
 
     // Set the lowest possible timer resolution
     const HMODULE ntdll = LoadLibraryW(L"ntdll.dll");