Eingabe- bzw. Entertaste funktioniert nicht

[Armin Lampert]

Unter Windows 10 64 bit und als User funktionieren die genannten Tasten
nicht. Wenn ich den Administrator zusätzlich starte, gehen sie. Was soll
ich machen?

[Robert Carnegie]

Perhaps log in as the User and then examine
"Control Panel" - "Change Input Methods", which
is in the category of "Clock, Language and Region".

This may show you that the User account has been
set to use a different language on the keyboard.

You can also "View devices" to see whether
the system correctly knows the model of keyboard
that is connected. However, I am guessing
that this would affect the Administrator also,
if it is not correct.

Now, I have not used a "Microsoft account"
to log in to my computer. I am using the
accounts managed on the computer.

Do you use "Administrator" and the "User" account
both in the same way? For instance, if you use
the "Safe mode" to log in as Administrator
(if there is still a "Safe mode" - I do not
remember), perhaps there is some software that
doesn't work properly, that is not included in
"Safe Mode".

And of course any strange behaviour of the computer
could be due to a virus.

Or, it could be a legitimate software product,
that runs for the "User", but that interferes
with actions on the keyboard. I use a program
called "AutoHotkey", for instance, that can
capture key strokes and perform alternative
actions - although I am presently using it
for other services, specifically, to move
any program's window on the screen, as I
require.

[Robert Carnegie]

There has come to mind another common situation,
which is, that on the smaller keyboard of a
"laptop" computer, there may be a "Number lock"
key; its function is to change some of the letter
keys to represent the digits 0 1 2 3 4 5 6 7 8 9
and some symbols, so that numbers can be input
quickly. I don't know if this is liable to
interfere with the "Enter" key, or if it is
specific to one user, but, it is another thing
that you can investigate. You would simply press
the Num Lock key once more to reverse its effects.

We had a laptop in our office which always started
with the Num Lock control turned on. It may be
discouraging for you to learn that we did not know
how to change that, except to press the key and
so turn Num Lock off. I think we bought another
computer, instead.