diff --git a/README.md b/README.md
index 5ee2ee5..c82d56b 100644
--- a/README.md
+++ b/README.md
@@ -6,10 +6,13 @@ Parts of it based on: https://gist.github.com/HiImJulien/3eb47d7d874fe5483810bd7
 
 ## Requirements
 
-- Clang Version 10
+- Clang Version >= 10
 - Visual Studio Build Tools: https://visualstudio.microsoft.com/downloads/
+  - The following components are sufficient:
+    * MSVC v142 - VS 2019 C++-x64/x86-Buildtools (v14.28)
+    + Windows 10 SDK (10.0.19041.0)
 - Qt5: https://download.qt.io/official_releases/qt
-
+  - again when installing it is sufficient to install msvc version of Qt5 
 
 ## Instructions Linux
 
@@ -44,13 +47,23 @@ Parts of it based on: https://gist.github.com/HiImJulien/3eb47d7d874fe5483810bd7
 - Install MinGW Make
 - Install JetBrains CLion (https://jetbrains.com/clion)
 
-### Steps
+### Steps (VS Toolchain)
 
 - Open project
 - Adjust Toolchain
-  - Go to Toolchain Settings
-  - Remove existing Toolchains
-  - Add MinGW Toolchain
+    - Choose Visual Studio Toolchain
+- Set CMake Options to:
+      `-DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=C:/llvm/bin/clang-cl.exe -DCMAKE_CXX_COMPILER=C:/llvm/bin/clang-cl.exe -DCMAKE_C_FLAGS=-m64 -DCMAKE_CXX_FLAGS=-m64 -DCMAKE_LINKER=c:/llvm/bin/lld-link.exe`
+
+### Steps (MinGW Toolchain)
+
+- Open project
+- Adjust Toolchain
+    - Go to Toolchain Settings
+    - Remove existing Visual Studio Toolchain
+    - Add MinGW Toolchain
 - Adjust CMake Profiles
-  - Add `-DCMAKE_TOOLCHAIN_FILE=clang_windows_toolchain.cmake` as CMake
-    parameters
+    - Add `-DCMAKE_TOOLCHAIN_FILE=clang_windows_toolchain.cmake` as CMake
+      parameters
+
+**TODO**: How to set up debugger?
diff --git a/clang_windows_toolchain.cmake b/clang_windows_toolchain.cmake
index afe2777..faf6523 100755
--- a/clang_windows_toolchain.cmake
+++ b/clang_windows_toolchain.cmake
@@ -1,7 +1,7 @@
 # Cross toolchain configuration for using clang-cl.
 
 set(WINSDK_VER "10.0.19041.0")
-set(QT5_VERSION "5.12.20")
+set(QT5_VERSION "5.12.10")
 
 if(WIN32)
         set(CMAKE_C_COMPILER "C:/llvm/bin/clang-cl.exe")