Defender was running normally and up to date.

'New network found' prompts were disabled.

Windows update was temporarily disabled.

Defragmentation was temporarily disabled.

Device was connected to a wireless network.

These computers were configured to the following settings, to increase consistency between measures and reduce tasks that may start during the measurement and interfere with the results, while still representing a realistic user setup: The test was performed on four separate Surface Book laptops running the Windows 10 Creator's Update (build 15063). Based on an average of at least 16 iterations per browser, Microsoft Edge used: The total CPU, GPU, and Wifi antenna power consumption was measured on the same workload using Chrome, Firefox, and Microsoft Edge, running on the Windows 10 Creator's Update (15063). Actual power consumption of the CPU, GPU, and Wifi antenna were measured using onboard Maxim chips, and read through Windows Performance Recorder. These tests were done on four Surface Books running the Windows 10 Creator's Update (build 15063) and connected to the Internet through Wifi. The Microsoft Edge team measured the average power consumption of the CPU, GPU, and Wifi antenna while Microsoft Edge, Chrome, and Firefox ran a representative set of user activities in each browser, automated through WebDriver. Browser efficiency comparison - Webdriver Windows 10 Creator's Update Methodology summary

Chrome webdriver for windows 64 bit