I have noticed when you remote desktop from any machine to your 8 or 8.1 box your screen reverts to this:
How annoying! Especially if you have a branding policy in your office or are feeling a little artsy.
Problem: Windows likes to the use default users lock screen image when I remote desktop or am logged out.
Solution: Set the default image for all users via a newly added through group policy.
First of all we need to open the group policy editor (if you want to edit it locally). If your on a domain I will assume you know how to use GPO’s and where to find them.
You will then need to navigate to Computer Configuration\Administrative Templates\Control Panel\Personalization\Force a specific default lock screen image
Double click to edit the policy, enter the path of the policy and click apply!
Simply log out and log back in to see the changes!