As for the Microsoft OS Disc (for W10 Pro), I just found out from Microsoft its limited to 'ONE' installation per PC (One Machine = One Licensed Install) ... Thanks to everyone for helping .. Happy Holidays and be kind to folks ... Thank You
Hello and Happy Holidays!  Needed clarification for permissible number of installations? DVD OS Discs, regarding TWO Different Optiplex Machines both having COA stickers attached . Are these discs limited to 'One Installation' only per machine?  Regarding W7 Pro Disc (please see)   [IMAGE] And Regarding W10 Pro Disc 'One Installation' only per machine?  (please see) [IMAGE] Thank You!  
Permissible Number of Installations of OS (For Optiplex)