Add Registry

There is missing letter i in "fClientDisableUdp"

You can use this instructions to do what you want, but I would start with OU with just one or two computers to test things first:
https://blog.thesysadmins.co.uk/group-policy-preferences-1-deploying-registry-settings.html

On my screen shot I had another question.   Please?  

Thanks for the info.

use both one for x86 machines and one for x64 machines

Sorry, I have miss-looked that one.
Hexadecimal 1 or decimal 1 is the same value, so it does not matter. Normally I use decimal number if it is not specified differently (or value uses a to f letters). It has nothing to do with 64 bit.
1=1, 2=2,...9=9, 10=a, 11=b, 12=c,... 15=f

Official way is to make such change with group policy.

Another way :

When you change a simple Value in the registry , you can Export it to a file that has a "reg" Extension.

Then you can create a GPO and link it to the OU you have for every user in the domain.

TO do that go User Configuration -> Windows-Settings -> Scripts (Logon/Logoff)

Under the Logon UI : Drop your File( registry value you exported)there and add /s as a parameter, so it can run silently , and with the gpo we set on every user.