I have used/installed many scanners and this UMAX 2100U was one of the easiest to setup and get running. I installed the scanner software on a 500 MHZ Pentium PC and have not had a problem. One recommendation I would make, however, is that if you have any other scanner software on your system, uninstall it first before you install the UMAX software. The non UMAX software will hang up your system when your PC attempts to access the UMAX software.