MD5' s 128-bit digital signature is generated by counting the content you downloaded many times. \x0d\ The MD5 value generated by what you downloaded is different from that published by the website, which means that you haven't completely downloaded everything provided by the website, otherwise the MD5 value will definitely be the same. \x0d\ If it is different, it may not be available. The principle of \x0d\MD5 value generation is to calculate the information you downloaded from 1bit followed by 1bit (for example, if you downloaded 1bit, the calculated MD5 value will be different as long as 1bit changes). \x0d\ If these changes are not very important, it will not affect the application of your system. So you can try to install the downloaded operating system first. As long as it can be used, there is no problem, and you can safely engrave the disc. \x0d\ has changed for many reasons. For example, downloading Thunder and transmitting it on the network will change the data. There are many reasons.