The Windows Debugger (WinDbg) can be used to debug kernel and user mode code, analyze crash dumps and to examine the CPU registers as code executes.
Debugging Tools for Windows 10 (WinDbg)
If you just need the Debugging Tools for Windows 10, and not WDK 10 or Visual Studio 2015, you can install the debugging tools as a standalone component from Windows SDK. In the installation wizard, select Debugging Tools for Windows, and deselect all other components.
Symbol files make it easier to debug your code. The easiest way to get Windows symbols is to use the Microsoft Symbol Server. If you prefer to download the entire set of symbols for a particular version of Windows, download a symbol package.