A windows 10 update is 100% but nothing happens.
I have already restarted the laptop.
Tip:
There are updates that don't go above 100% when they notice that you are watching them
Just ignore it and continue working with the notebook
Like a car or anything else that has problems.
At the latest when someone else (e.g. A technician) is watching you, everything suddenly works again.
SO about, yes
No, but that is a typical phenomenon that I have noticed for a number of years with some updates on a wide variety of PCs / notebooks