Windows 10 build 10122

Windows 10 build 10122 (fbl_impressive) is the second officialy 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.