Yes those instructions would seem to still apply.
WD wants to write files to its installation directory, which Microsoft specifically does not want so the privilege model introduced in Vista as part of UAC will not allow this. You have two options:
- Install into a directory not under “\Program Files” or “\Program Files (x86)”, such as “\wdisplay”.
- Install in to “\Program Files” (or “\Program Files (x86)” on a 64-bit OS) and run WD as an administrator.
I prefer #1, and use “\Local\Program Files (x86)”.
If you choose to switch to option #1 you can, and will need to, edit the .reg file before importing to the registry. It is a text file that you can modify (carefully!) using notepad or similar. A simple find/replace should work for this but I believe there is a posting for FAQ somewhere in these forums with specifics. You will also want to edit the .ini files in the WD install directory if you choose to overwrite these, such as when you restore from a WD backup or copy the directory from an older install.
This FAQ may be helpful: Moving WD to a new/different PC
If you restore from a backup or copy the contents from a previous install you likely won’t need a new key, but if you do just drop an email to Brian. He is pretty responsive.