Win7/Win8.1 upgrade Win10 update failed 80240020 code problem solution

A lot of Windows7, Windows8.1 users through the online upgrade to install the official version of win10 pushed by Microsoft, but in the process of upgrading the installation failed. The upgrade was not possible. Given this situation, many users choose to enter the Windows 10 pre-download installation folder and intend to install it manually. However, the new problem came again at this time, that is, the installer claimed to be missing the boot.wim file and could not be installed.

For this, we can copy the downloaded win10 system temporary folder <;C:\\$Windows.~BT\\” (hidden system folder) to other disks. Double-click the setupre.exe program in the source folder to install it.

Note that if your folder is incomplete, it is likely that the download has not been completed. Caused by. 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 there are also users who say 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.

Because this push upgrade method is the first time, some problems will inevitably occur during the actual operation. Microsoft has not yet given an official solution to the various issues, and Xiaobian will announce the correct method as soon as it is informed of the formal solution.