Visual Studio 2017 hangs on install [5.6.3f1]

I’m installing Unity 5.6.3f1 on Windows 10, but the Visual Studio installer is hanging on this:

Acquiring SyntaxTree.VisualStudio.Unity.Vsix
99%

Has anyone else had this problem?

Managed to fix it by following the instructions here:

Hope this helps anyone else who has similar problems