I also bought a Lide 300 but couldn't get it working. Returned and received another but no luck. I have bought a few scanners during the last 25+ years and never had any problem to install. I still have the canon sitting on a shelf and try from time ...
I have the same problem as you. Got replacement but same with that on. Tried on 7 computers and nothing works. Must be same secret because someone seem to have them working. I have packed it back in the box and waiting for someone to have a solution.
I have the same problem. I sent it first back because I thought it was faulty. Received a new and spent enormous of hours on 7 different computers. Windows 10 and 11 + Mac. Getting exactly same result as you describe. There must be some secret to get...
