I've used this for years with no problems but after updating to Win 10, the scheduling/reminding part wouldn't work (actually blew up Win 10) and I got random errors when saving the new profile. After a frustrating wait a X-Rite, the new owners, the support desk said that the device wasn't supported past Win 7 and I would have to get a new calibrator. There was no 'upgrade' deal and I resisted. I looked around and tried a freeware version that supported many devices but the interface was seemingly translated from Klingon and assumed a knowledge and interest I didn't have. Today, I got frustrated and tried running the original Gretag Macbeth software in XP compatability mode and, except for small error message at the very end, seemingly after the profile was written saying that the software was incompatible, all is well.