| A | B |
| baseline | A set of performance indicators gathered when system performance is acceptable. |
| bottleneck | The component in a process that prevents the overall process from completing faster |
| counters | The performance indicators that can be recorded in Performance Monitor. |
| file history | A feature that is used to backup user files to an external hard drive or files share. |
| performance monitor | tool within the Microsoft Management Console (MMC) that allows you to visually display the data generated by counters. |
| performance tuning | The process for collecting system performance data, analyzing system performance data, and implementing system performance improvements. |
| reliability monitor | A utility that rates the system stability of Windows 10 over time and correlates system events with changes in system stability. |
| restore points | A snapshot of operating system and program files at a specific point in time that can be restored to roll back to a point in time when the operating system or apps were stable. |
| system restore | The feature that uses system protection to create and restore system restore points. |
| task manager | utility that allows you to view overall system information and manipulate processes |