Installing Multiple Copies on one machine? To Parent Forum October 6, 2015 at 6:21 pm #52249 Jon PetersonParticipant Is it possible to install v9, v10 and 11 on one machine? I have a test machine running in our IT lab and designers are testing it for possible upgrade to V11 soon. They requested this for some reason. Thanks. Jon P. October 7, 2015 at 9:51 am #52351 Neil WilsonParticipant Hi Jon, you can have 9 and 10 or 11. Version 9 installs to separate file paths and registries but version 11 will overwrite version 10 and vice versa. Neil October 7, 2015 at 7:01 pm #52532 Jon PetersonParticipant Thank you Neil. You must be logged in to reply to this topic. Share this Post