Tutup seluruh program yang tidak dibutuhkan. Tutup program yang membandel secara paksa. Nonaktifkan program start-up yang tidak dibutuhkan. Gunakan peramban (browser) web yang lebih efisien jika perlu. Mulai ulang komputer.

Given the above summary, write a detailed text in English for it.
Clicking the X in the top-right corner of a program's window will usually close it. If you're trying to close a program that runs in the background, though, you can do the following:  Click the icon in the bottom-right corner of the screen. Right-click the app icon for the program you want to close in the resulting pop-up menu. Click Quit, then confirm if prompted. If you can't get a program to close normally, you can force it to quit:  Press Ctrl+⇧ Shift+Esc (or right-click the taskbar and then click Task Manager). On the "Processes" tab, click the name of the program you want to close. Click End task in the bottom-right corner of the window. Start-up programs are programs which start when you boot up your computer. This can both make your computer's start-up process slower than necessary and crowd your computer's RAM. To disable these programs, do the following:  Press Ctrl+⇧ Shift+Esc (or right-click the taskbar and then click Task Manager). Click the Startup tab at the top of the window. Click the name of the program you don't want starting when you turn on your computer. Click Disable in the bottom-right corner of the window. If you're still using Internet Explorer or even Microsoft Edge, you may be able to save some RAM by switching over to Google Chrome or Firefox. Microsoft recommends using Microsoft Edge for best performance, but if you notice that Edge slows down your computer, you might want to try a different browser. Once you've disabled start-up programs, restarting your computer can help take care of any stored RAM:  Click Start. Click Power. Click Restart.