From 2ecaf37a3ee49b8c92aefa6afb2bfc7a458e3bd6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BC=B5=E5=B0=8F=E5=87=A1?=
 <2672931+whyb@users.noreply.github.com>
Date: Fri, 10 Nov 2023 19:07:24 +0800
Subject: [PATCH] Fix find GPU driver dll path in windows (#5141)

---
 docs/developer-guide/vulkan-driver-loader.md | 4 ++--
 src/simplevk.cpp                             | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/docs/developer-guide/vulkan-driver-loader.md b/docs/developer-guide/vulkan-driver-loader.md
index c84475f95..9ce0e56c0 100644
--- a/docs/developer-guide/vulkan-driver-loader.md
+++ b/docs/developer-guide/vulkan-driver-loader.md
@@ -73,12 +73,12 @@ Requires static meltvk driver linking and should always succeed
 If failed, it will try to find graphics driver object and load it
 
 #### Windows
-search ```C:\Windows\System32\DriverStore\FileRepository``` for
+for 64bit applications. search in ```%SystemRoot%\System32\DriverStore\FileRepository```
 - nvoglv64.dll
 - amdvlk64.dll
 - igvk64.dll
 
-for 32bit applications
+for 32bit applications. search in ```%SystemRoot%\System32\DriverStore\FileRepository```
 - nvoglv32.dll
 - amdvlk32.dll
 - igvk32.dll
diff --git a/src/simplevk.cpp b/src/simplevk.cpp
index 96b661174..b4d1d778d 100644
--- a/src/simplevk.cpp
+++ b/src/simplevk.cpp
@@ -554,8 +554,8 @@ int load_vulkan_driver(const char* driver_path)
         for (int i = 0; i < well_known_path_count; i++)
         {
 #if defined _WIN32
-            // find driver dll in C:\\Windows\\System32\\DriverStore\\FileRepository
-            std::string dllpath = search_file("C:\\Windows\\System32\\DriverStore\\FileRepository", well_known_path[i]);
+            // find driver dll in %SystemRoot%\System32\DriverStore\FileRepository  (32bit and 64bit both and in here)
+            std::string dllpath = search_file("%SystemRoot%\\System32\\DriverStore\\FileRepository", well_known_path[i]);
             if (dllpath.empty())
                 continue;