Windows 10: What Windows will do when a key does not exist in the registry?

First, a generalized question:

When Windows needs to read a registry key to perform an action accordingly, if the key does not exist in the registry, which of the followings Windows will do:

A. use the default value of the key and perform a corresponding action? or
B. skip the action silently as it could not find the key?


Second, specifically, when the LocalAccountTokenFilterPolicy key on a Windows server for instance Windows server 2012 R2 does NOT exist in the registry, will the UAC remote restrictions still get enabled?


Thanks

:)

 

Windows Registry Key

Does anyone know which registry key(s) report(s) to software which OS you are running?

 

Can NOT remove ATITool registry key!

Bug reports are fine. If however, you are un-able to submit them in suitable polite manner then a problem arises. If you would like something done with a freeware program that nobody really profits on, then I suggest being polite. The designer is providing a free service, and personal attacks for possible errors in code are un-called for. I really don't think that a registry key from ATITool that was not completely deleted poses a threat to the stability or operation of your PC, and in no way represents a malicious attack on your computer. I'm sure that if a problem exists in will be corrected in do time, plus keep in mind you are using a beta version of sofware and errors in design are bound to exist.

 

Windows Registry Key

Why do you want to know - having some annoying problem or looking for something fun to play with???!!