Re: how long does the windows 10 update take
you need to provide WAY more info... which update specifically? since you say update and not upgrade, i assume you are already on 10 and doing the 1511 update. MANY factors can be taken into consideration.
was your windows 10 install a clean install or upgrade from windows 7/8?
type of hardware?
age of hardware?
standard, spinning HDD or SSD?
i could go on forever.
i had 2 similarly spec'ed PCs and 1 took 15 minutes, the other took 2 hours.