Could you please give more details about your configuration to achive the RDP shadow?
I configured some PCs who can't be in domain but need RDP shadow
Do you want to use these PCs to shadow other remote sessions or shadow to these PCs' remote session from other machines?
put user account in Guests group
What kind of the users? Domain users? Local users? Did you put them in Guests group on those non-domain PCs?
Guests cannot been shadowed
Do you mean let these guest users shadow other's remote session or let Administrator to shadow there guest users' sessions?
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