Linux is also very powerful. And this powerful operating system can also be installed in the USB flash drive to run, you can put it in your pocket, as long as your computer supports U disk boot, we can use it to access the Internet, office, video chat, play games and so on. Like the Windows genuine software, it automatically upgrades online and automatically updates the software, all for free. Linux also has different versions, and although each has its own advantages, its kernel is similar. Recommend this operating system to everyone: Ubuntu. First of all, you need to download the system installation software. The ISO file Ubuntu version will be downloaded from the downloaded ISO installation file. There are two methods: one is to use the USB flash drive to install the USB flash drive; the other is to engrave the ISO file into a CD and use the CD to U. The disk is installed. Focus on the U disk to install the U disk. To install using a USB flash drive, you must first install the ISO file into the USB flash drive. You cannot directly copy the ISO file to the USB flash drive. You must use the UltraISO file to install it. The software can be downloaded online. Open the Ubuntu file with UltraISO software. Then use the UltraISO software "Startup": write to the hard disk image; select USB-HDD, click Write. Exit the software when you are done. Use U disk to install Ubuntu. Put the computer into the COM settings and use the USB flash drive as the boot disk. After saving, restart the computer, and the USB flash drive will act as USB— Cdrom. After entering the interface, you can choose to install Ubuntu to the hard disk or install it to the USB flash drive. If you don't install it, you can also go online or do other things. But anything you save is lost after it is restarted, and the interface and files are all restored to their original state. The only benefit is that you are not afraid of viruses. If you want to be the same as Windows, you have to do a second installation. Of course, you can also install it in windows. After installation, you can create another boot directory in XP, but it will affect the performance and speed of UBUNTU. The best way is to install it separately. Separate installation To partition, you need two zones: one is the virtual memory area (swap), also known as the swap area. The size is 150M ~ 1200M, recommended 1000M. The other is the primary partition, which is larger than 5 G. The installed system file is about 3G, and you will need to upgrade and download the files later. Ubuntu can be installed after the two partitions are divided. I used the 8G SD card, divided into three areas, in addition to the two Ubuntu partitions, there is another 1.5G FAT32 format partition, mainly used under Winodws, can also exchange files with Ubuntu and store files after downloading. space. It is best to disconnect the hard disk when installing Ubuntu, which is safe. The user name and password must be set during the installation process, or you can choose to automatically enter the password at startup. Passwords must be kept in mind and used when upgrading and installing files. Choose the language for installation, it supports many languages, and also has simplified Chinese. Of course, you can change the language online after installation. The installed Ubuntu is best upgraded first. Ubuntu can run Word, Excel and Power Point directly in Microsoft Office. You can also not use the hard disk. The laptop I use is the Acer 1810TZ. After disconnecting the hard disk during travel, it can also save power and become a veritable hard diskless computer. The computer's battery is extended for a long time, and because there is no hard disk, it is not afraid of bumps. The performance of the whole machine has been greatly improved. Ubuntu also supports Bluetooth and WiFi Internet access and camera functionality without reinstalling. People who like the five-stroke font can call it directly. The browser interface is also very good, especially the ‘private browsing & rsquo; function under the tool, so that you can browse any webpage without leaving traces. This is the same as IE8.0. If anyone likes the Ubuntu system, everyone can communicate.