as predicted! Windows 10 annual update is a curse

It is also easy to make a mistake by making a patch, not to mention a large-scale update like Threshold 2? After Microsoft started pushing it, it was only two hours later, and users reported errors.
In the official Microsoft forum, some users said that the update installation will be stuck at 44%, and then no response.
Microsoft quickly responded by saying that this is the reason for the SD card. If it is temporarily unplugged, it can continue.
But this is just the beginning, then more users say they don't have an SD card, but they are stuck at different stages such as 9%, 34%, 91% or even 0%.
Especially 91% of the most serious, forced to shut down and restarted, but was told to roll back to Windows 7, the result failed again, just a black screen said startup failed, error code 0xc000000e.
Microsoft has not yet responded more. It is recommended that users who do not want to take risks to wait a few days to update, especially those upgraded from Windows 7/8.1, it turns out that most of the problems are this.
PS: The entire update package downloads about 3GB, please be patient, and ensure that the remaining space of the system disk is not less than 5GB, which can be inserted into the U disk.
Related reading:
Windows 10 annual update: Win7/8.1 can be upgraded!
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clean installation of Windows 10: a successful update