fix power problems with Power Troubleshooter and Extend laptop battery life

Power Troubleshooter

This Power Troubleshooter will automatically troubleshoots Windows power plans and detects your system settings that can affect power usage, such as timeout and sleep settings, display settings, and screensavers, and restore them to their default settings.

You have the option to let it scan and fix issues automatically, or you can choose and select which settings you want fixed. Once you select and option, the Power Troubleshooter will start the scan and present you with its findings.

Once you click Next, it will fix the issues and present you with a report.

This Power Troubleshooter fixes the following:

• Wireless adaptor is not optimized for power saving
• Screen saver is used instead of setting the computer to enter sleep mode
• Period of time before the computer goes to sleep is set too long
• Minimum processor state is set too high
• Display brightness is set too high
• Power plan is not set to the most efficient power plan.

You can download it from Microsoft.

Windows 10/8.1 has this tool built-in. In Windows 10, open Settings > Update & Security > Troubleshoot > Power.