However, it's probably a lot easier to just select "Adjust for best performance" at the top of the screen and then click OK. Windows 10 will then turn off the effects that slow down your system.
4. Launch the Windows troubleshooter
Windows 10 has a very useful, little-known tool that can sniff out performance problems and solve them. To launch it, type troubleshooting into the search box, and click the "Troubleshooting Control Panel" icon that appears. Then click "Run maintenance tasks" in the System and Security section of the screen that appears. A screen titled "Troubleshoot and help prevent computer problems" will appear. Click Next.
The troubleshooter will find files and shortcuts you don't use, identify any performance and other issues on your PC, report them to you and then fix them. Note that you may get a message that says, "Try troubleshooting as an administrator." If you have administrative rights to the PC, click it and the troubleshooter will launch and do its work.
Windows 10's troubleshooter can perform maintenance and housecleaning tasks to help speed up your system.
5. Get help from the Performance Monitor
There's a great tool in Windows 10 called the Performance Monitor that can, among other things, create a detailed performance report about your PC, detail any system and performance issues, and suggest fixes.
To get the report, type perfmon /report into your search box and press Enter. (Make sure there's a space between "perfmon" and the slash mark.) The Resource and Performance Monitor launches and gathers information about your system. It will say that it will take 60 seconds, but I've found that it takes several minutes. When the Monitor finishes, it will launch an interactive report.
The Performance Monitor reports details on system and performance issues.
You'll find a lot of extremely detailed information in the report, and it can take a lot of time to go through. Your best bet is to first look at the Warnings section, which details the biggest issues (if any) it found on your PC, such as problems with Windows, with drivers and so on. It also tells you how to fix each problem -- for example, how to turn on a device that has been disabled.
It is also worthwhile to scroll down to the Resource Overview section, where you'll find an analysis of how well your CPU, network, disk and memory are performing. Each result is color-coded, with green meaning no problems, yellow meaning potential issues, and red showing a problem.
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