How to reinstall computer system without USB disk

How to reinstall the computer system without using a USB flash drive

With the rapid development of technology, computers have become one of the indispensable tools in our lives. However, as time goes by, we often find that the computer becomes slower and slower, and various problems occur. In order to solve these problems, many people choose to reinstall the operating system. In the process of reinstalling the system, using a USB flash drive is one of the very common methods. But what if we don’t have a USB flash drive? This article will introduce some methods to reinstall the system without a USB flash drive.

Method 1: Use the recovery partition that comes with the computer
Many brands of computers come with a recovery partition pre-installed at the factory, which contains the image file of the original system. When we need to reinstall the system, we only need to press the shortcut key assigned when the computer is started (usually F11 or F12), and then select the recovery option. The system will automatically restore system files from the recovery partition to their original state. This method is simple and convenient and does not require the support of a USB flash drive.

Method 2: Use the network to reinstall the system
Some brands of computers provide the function of online reinstallation of the system. In this case, we only need to connect to the Internet, visit the computer brand's official website or system support page, and then follow the prompts to choose to reinstall the system. The system will automatically download and install new system files. This method also does not require a USB flash drive.

Method 3: Use an external hard drive or mobile hard drive
If we don’t have a USB flash drive but have an external hard drive or mobile hard drive, we can put the system image file in the external hard drive and then set it through the computer’s BIOS Use external hard drive as boot device. When the computer starts, it reads the system image file from the external hard drive and installs the new system. This method requires slightly more complicated operations, but it can replace the role of a USB flash drive.

Method 4: Use a virtual optical drive
A virtual optical drive is a software that simulates an optical drive, through which you can load a disc image file onto your computer. We can use a virtual optical drive to load the system image file and boot the system installation from the optical drive when the computer restarts. This method does not require a USB flash drive, but requires the virtual optical drive software to be installed in advance.

To sum up, although U disk is a commonly used tool for reinstalling the system, if we do not have a U disk or do not want to use a U disk, there are still other ways to complete the task of reinstalling the system. Choosing the appropriate method according to different situations can help us reinstall the system more conveniently and keep the computer in good operating condition.

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