Win10 lack of boot.wim file upgrade failure how to solve?

Recently, many people are upgrading the Win10 system. Of course, some people have failed to upgrade. The reason for the Win10 upgrade failure is also varied. The more common one is Win10 because of the lack of boot.wim and the upgrade fails. What should I do at this time? Let's take a look.

































The setupre.exe program can be installed normally.
Note that if your "C:\\$Windows.~BT\\” folder is not complete, it is likely that the download has not been completed. Note the Windows Update ID on the right side of the taskbar. If it exists and prompts you to download the percentage of updates, you should not do this. After the prompt disappears, entering the folder will reveal that the contents of the file are very similar to the Win10 system image.
But some users also said that the "Windows.~BT" folder will disappear in some cases, which has a lot to do with its "temporary" attribute. The root cause of this problem is that the system believes that the file in the folder has “completed the mission”; therefore, the content will be deleted, but from the feedback of “Installation Failure”, this is obviously a serious mistake. Therefore, in order to prevent the abnormal problem caused by this folder property problem, you can consider putting the files in the copied folder into the normal folder or changing the folder properties after copying. Remember, don't make any changes to the original “$Windows.~BT” folder to avoid affecting the normal upgrade channel.
The original 6GB or more folders are inexplicably only 140MB
The above is the complete content of Win10 lack of boot.wim file upgrade failure, but this method is summarized by netizens, can only be regarded as a recipe. If there is a better solution, Xiaobian must inform everyone at the first time, so stay tuned.