In visual studio
solution 1 (install NuGet extension) :
-Tools > Extensions and Updates > On left-treeview click Online > Find NuGet and install&download
-restart VS
-Tools > NuGet Package Manager
solution 2 (use plain cmd) :
on your PRJ directory, there is \VSPRJ\NuGet\NuGet.exe
cmd there, execute as you see it in NuGet page aka https://www.nuget.org/packages/CefSharp.WinForms/39.0.0-pre02
wait.. wait.. downloading... near NuGet.exe will be the package folder
solution 3 (use standalone application NuGet Package Explorer) :
http://npe.codeplex.com/
solution 4 chrome extension (33kb) :
https://chrome.google.com/webstore/detail/nutake/ibhhbcaipjilldjkhhblhgdedjgoecap
Error 11 error : This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them. For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is ..\packages\x.8.6783.1234\build\x.props ..
solution 1 (install NuGet extension) :
-Tools > Extensions and Updates > On left-treeview click Online > Find NuGet and install&download
-restart VS
-Tools > NuGet Package Manager
solution 2 (use plain cmd) :
on your PRJ directory, there is \VSPRJ\NuGet\NuGet.exe
cmd there, execute as you see it in NuGet page aka https://www.nuget.org/packages/CefSharp.WinForms/39.0.0-pre02

JavaScript:
nuget install CefSharp.WinForms -Pre
wait.. wait.. downloading... near NuGet.exe will be the package folder
solution 3 (use standalone application NuGet Package Explorer) :
http://npe.codeplex.com/
solution 4 chrome extension (33kb) :
https://chrome.google.com/webstore/detail/nutake/ibhhbcaipjilldjkhhblhgdedjgoecap