These two installation methods are similar in principle, but each has its own advantages and disadvantages. You can weigh the pros and cons according to your actual needs before making a decision.

The advantage of USB flash drive installation is fast reading speed, the data in USB flash drive can be erased repeatedly, and the installation file can be changed at any time. The disadvantage is that because the U disk is erasable, sometimes antivirus software may mistake the files in the operating system installation files for viruses, which may easily lead to file deletion and installation failure. At the same time, there are many ways to start the USB flash drive, and the setting is slightly more complicated than that of the CD.

The advantage of CD-ROM installation is that data will not be destroyed. Generally, CD-R or DVD-R discs are used to install the recording system. The recording system can only be written once, and once the data is written, it cannot be modified, so the operating system written into the disc will not be destroyed by misoperation or antivirus software. However, the reading speed of CD itself is usually lower than that of U disk, and the storage condition of CD is higher than that of U disk.