1. Change your power settings

If you’re using Windows 10’s “Power saver” plan, you’re slowing down your PC. That plan reduces your PC’s performance in order to save energy. (Even desktop PCs typically have a “Power saver” plan.) Changing your power plan from “Power saver” to “High performance” or “Balanced” will give you an instant performance boost.

To do it, launch the Control Panel app, then select Hardware and Sound > Power Options. You’ll typically see two options: “Balanced (recommended)” and “Power saver.” (Depending on your make and model, you might see other plans here as well, including some branded by the manufacturer.) To see the “High performance” setting, click the down arrow by “Show additional plans.”

2. Defrag your hard disk

The more you use your hard disk, the more it can become fragmented, which can slow down your PC. When a disk gets fragmented, it stores files willy-nilly across it, and it takes a while for Windows to put them together before running them. Windows 10, though, has a built-in defragmenter you can use to defragment your hard disk. You can even tell it to run automatically so it stays constantly defragmented.

To do it, type defrag into the search box and press Enter. From the screen that appears, select the drive you want you want to defragment. Click the Optimize button to defragment it. Select multiple disks by holding down the Ctrl key and clicking each you want to defragment. If you want to have your disk or disks defragmented automatically, click the Change settings button, then check the box next to “Run on a schedule.” Now select the frequency at which you want the disk(s) defragmented by clicking the drop-down next to Frequency and selecting Daily, Weekly or Monthly. (Weekly will be your best bet.) From this screen you can also choose multiple drives to defragment.

3. Disable shadows, animations and visual effects

Windows 10 has some nice eye candy — shadows, animations and visual effects. On fast, newer PCs, these don’t usually affect system performance. But on slower and older PCs, they can exact a performance hit.

It’s easy to turn them off. In the Windows 10 search box, type sysdm.cpl and press Enter. That launches the System Properties dialog box. Click the Advanced tab and click Settings in the Performance section. That brings you to the Performance Options dialog box. You’ll see a varied list of animations and special effects.

f you have time on your hands and love to tweak, you can turn individual options on and off. These are the animations and special effects you’ll probably want to turn off, because they have the greatest effect on system performance:

• Animate controls and elements inside windows
• Animate windows when minimizing and maximizing
• Animations in the taskbar
• Fade or slide menus into view
• Fade or slide ToolTips into view
• Fade out menu items after clicking
• Show shadows under windows

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.