It works on my Windows 10 PC desktop. They upgrade it regularly, work out the glitches later but it still manages to function- on the *desktop* where original NS File lives. However, I have never been successful: Saving or printing NPW addresses/passwords anywhere. The program will not allow it to be printed nor saved (in the event of a crash why not?). Painfully learned lessons: Never rely on Norton Cloud nor their separately,annually c$arged NOLBU Program. So, NPM does not funciton on Android products: Amz Fire10 Tablet (ok, nothing works w/Silk), LG-G6 SmartPhone, regardless how many times it's been downloaded, Symantec does not care that I've been overcharged annually for NS & it's promise of "Up to 5 Devices", nor do they want to believe (care) that Auto-Renewal "Is Disabled every year!". It has re-abled itself , w/out Notice and there is no equivalent word translatable between America (English) and India for "Refund"- not in Chat or in Call Centers. Caveat: When experimenting by downloading the entire, memory hog, NS Program, enabling *every* feature of NS on "Other Devices" , PWM functioned, albeit slowly & sporadically. The Trade Off is obvious, a bad memory for the willingness to provide Symantec 100% Permission to manage my devices. Never gain.