[WindowsCentral.com]

Power Throttling is a feature to improve battery life on Windows 10, but if it's not working as expected, you can use this guide to manage its settings.
On Windows 10, you typically work with multiple applications, and even though you may not be actively using them at the same time the background processes can still consume a significant amount of power.
In order to optimize power usage, the Windows 10 Fall Creators Update introduced "Power Throttling," a feature that leverages the power-saving capabilities on modern processors to limit resources for background processes, while still allowing them to run, but only using a very minimal amount of power.
Using this technology, Windows can automatically detect which applications you're actively using and throttle any other processes that are identified as not important, which can result in up to 11 percent of battery life saving to help you get more work done on a single charge.
The only caveat is that the detection process may not always work as expected, and in these cases, you can always monitor which apps are being throttled and configure Windows 10 to prevent putting certain apps into a low power state.

Full story from the WindowsCentral blog...