diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..5e7066b
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,61 @@
+name: CI
+
+on:
+  push:
+    branches: [ master, main ]
+    paths-ignore:
+      - .editorconfig
+      - .gitignore
+      - '*.md'
+  pull_request:
+    branches: [ master, main ]
+    paths-ignore:
+      - .editorconfig
+      - .gitignore
+      - '*.md'
+  workflow_dispatch:
+
+jobs:
+  # Header-only validation across platforms
+  header-validation:
+    name: Header validation on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    
+    strategy:
+      fail-fast: true
+      matrix:
+        os: [ubuntu-latest]
+        
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      
+    - name: Configure CMake
+      run: cmake -B build -DKMTEST_BUILD_SAMPLES=OFF
+      
+    - name: Build
+      run: cmake --build build
+
+  # Windows specific builds (kernel mode samples require WDK)
+  windows-build:
+    name: Windows Build ${{ matrix.platform }}-${{ matrix.configuration }}
+    runs-on: windows-2022
+    
+    strategy:
+      fail-fast: true
+      matrix:
+        platform: [x64]
+        configuration: [Debug, Release]
+    
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      
+    - name: Setup MSBuild
+      uses: microsoft/setup-msbuild@v2
+      
+    - name: Build samples
+      shell: powershell
+      run: |
+        # Build the solution (may fail for now, but we'll fix it later)
+        msbuild samples\Samples.sln /p:Configuration=${{ matrix.configuration }} /p:Platform=${{ matrix.platform }} /m
\ No newline at end of file
diff --git a/README.md b/README.md
index f5daea1..3c697fe 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # KmTest
-Kernel-mode C++ unit testing framework in BDD-style [![Build status](https://ci.appveyor.com/api/projects/status/oh90njhd50dfwco0/branch/master?svg=true)](https://ci.appveyor.com/project/SergiusTheBest/kmtest/branch/master)
+Kernel-mode C++ unit testing framework in BDD-style [![CI](https://github.com/SergiusTheBest/kmtest/actions/workflows/ci.yml/badge.svg)](https://github.com/SergiusTheBest/kmtest/actions/workflows/ci.yml)
 
 - [Introduction](#introduction)
   - [Features](#features)
diff --git a/appveyor.yml b/appveyor.yml
deleted file mode 100644
index f7f0805..0000000
--- a/appveyor.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-image: Visual Studio 2019
-
-configuration:
-- Debug
-- Release
-
-platform:
-  - x86
-  - x64
-
-matrix:
-  fast_finish: true
-  
-shallow_clone: true
-
-build:
-  project: samples\Samples.sln
-  verbosity: minimal
\ No newline at end of file