Windows 10 build 10122

Windows 10 build 10122 is the second officially released Insider Preview build of Windows 10. It was released to Windows Insiders in the Fast Ring on 20 May 2015.

Bugs

 * Upgrading to this build on certain machines may fail and roll back to the previously installed build with error  –.
 * Users may encounter several issues when using Cortana's speech capabilities due to a critical bug.