Create a single HTTP symbol server on your network that all your debuggers can point to. This approach has the benefit of pointing to multiple symbol servers (both internal and external) with a single symbol path, handling all authentication, and increasing performance via symbol caching. Symproxy.dll is in the SymProxy folder in the installation directory.
A symbol server that the debugger can use to connect to a symbol store. For information about working with the symbol server, see Microsoft public symbols.
The default installation directory for 64-bit OS installations of the debugging tools is C:\Program Files (x86)\Windows Kits\10\Debuggers\. If you have a 32-bit OS, you can find the Windows Kits folder under C:\Program Files. To determine whether you should use the 32-bit or 64-bit tools, see Choosing the 32-bit or 64-bit debugging tools.