The “Respect Device Power Mode Settings” option on Windows 10 helps reduce high processor and hard drive usage as the system index the contents on your device, and these are the steps to enable it.
On Windows 10, the indexer is an essential feature designed to search and index all the contents (metadata, text, filename, extension, etc.) stored on your device on a special database to make Windows Search faster.
The problem is that the index process can sometimes cause performance issues, and since many users have been disabling the feature completely to mitigate the problem, starting with Windows 10 version 2004 (May 2020 Update), Microsoft introduced and new algorithm that respects to stop searching and updating the database during certain power conditions to trade off performance to keep the battery running longer and prevent high disk or processor usage.
Enable Respect Device Power Mode Settings for indexer on Windows 10
To enable Windows Search indexer power mode, use these steps:
Click on Search.
Click on Searching Windows.
Under the “Indexer Performance” section, turn on the Respect Device Power Mode Settings option.
Once you complete the steps, the indexer will stop searching and updating the database with new information in the background or throttle it down during certain times. For example, when the device is in power saving mode, low power mode, or gaming mode. Or when the processor usage peaks 80 percent, or disk usage goes up above 70 percent.