Before investigating a slow start-up it is important to establish a repeatable timed start-up. This may also resolve a wide range of cumulative issues that can affect performance.
- Turn your PC on and sign-in
- Open Task Manager, select the Performance tab and wait for the CPU usage to drop to below 25%
- Choose Start > Power > Restart and confirm that you want to restart if prompted
- Using a watch or timer, note how long your PC takes to get from the first Dell logo to the sign-in screen. Pause the timer: this the Login screen timing shown above
- Enter your sign-in details, select sign-in and resume the timer. Record how long it takes for the Start menu to show. This is the Start menu visible timing shown above. Leave the timer running
- Open Word from the start menu (don't open an existing document) and time how long it takes for Word to open. This is the Apps open timing shown above
Note: Under Windows 10 a restart ensures a more complete refresh than a shutdown and power-on.