Curso Instalando o sbt no Windows 10 for Scala

As instruções do curso dizem para usar a versão 0.13.x. Instalei o msi mais recente no site sbt, mas quando digito "sbt about", recebo:

Microsoft Windows [Version 10.0.15063]
(c) 2017 Microsoft Corporation. All rights reserved.

C:\Users\reall>sbt about
Error: Unable to access jarfile
Copying runtime jar.
The filename, directory name, or volume label syntax is incorrect.
Error: Unable to access jarfile
"C:\Users\reall\.sbt\preloaded\org.scala-sbt\sbt\"1.0.2"\jars\sbt.jar"
Java HotSpot(TM) 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
[info] Loading project definition from C:\Users\reall\project
[info] Set current project to reall (in build file:/C:/Users/reall/)
[info] This is sbt 1.0.2
[info] The current project is {file:/C:/Users/reall/}reall 0.1-SNAPSHOT
[info] The current project is built against Scala 2.12.3
[info] Available Plugins: sbt.plugins.IvyPlugin, sbt.plugins.JvmPlugin, sbt.plugins.CorePlugin, sbt.plugins.JUnitXmlReportPlugin, sbt.plugins.Giter8TemplatePlugin
[info] sbt, sbt plugins, and build definitions are using Scala 2.12.3

ou seja, um erro no arquivo jar e a versão 1.0.2 do sbt.

Alguma idéia do que estou fazendo de errado?

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