Environment Registry Key
Thanks for your reply. I think I'll make a system image backup before deleting it then see what happens!
Edit:
Best info that I can find is:
Embedded nulls are also sometimes used by vendors and developers,
as yet another antipiracy measure.
The point is, any developer whose apps write to the Windows registry
knows -- or should know -- that embedded nulls render a string
unreadable as a whole by the default Windows viewers.
Does that mean that all embedded nulls signal malware? Of course not.
What it does mean is that something is being hidden from ready view.
Attempting to look at it with another utility reveals:
So it's probably best to leave it alone.