diff --git a/samples/cpp/README.md b/samples/cpp/README.md
index 711df9c03c..9a0874be15 100644
--- a/samples/cpp/README.md
+++ b/samples/cpp/README.md
@@ -1,3 +1,20 @@
-Please refer to the following blogs for the setup instructions. 
+Please refer to the following blogs for the setup instructions.
 
 https://medium.com/openvino-toolkit/how-to-build-openvino-genai-app-in-c-32dcbe42fa67
+
+## Windows Troubleshooting
+
+### "System Error" or "DLL not found" after compilation
+
+If `chat_sample.exe` fails to start despite a successful build, it may be unable to locate the OpenVINO or TBB libraries. This is common when building with Visual Studio.
+
+**Solution:**
+
+Ensure the required DLLs are present in the executable directory (`Release` or `Debug`). You can copy them from your OpenVINO installation or Python environment:
+
+```cmd
+rem Example for copying TBB and OpenVINO libraries
+copy <path_to_venv>\Lib\site-packages\openvino\libs\*.dll <path_to_build>\Release\
+copy <path_to_venv>\Lib\site-packages\openvino\libs\tbb\*.dll <path_to_build>\Release\
+
+