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This lowers your system security. Do not do this on a production or internet-facing PC. install umax astra 4100 scanner windows 7
However, if you have recently upgraded to (or inherited an old machine running it), you have likely discovered a frustrating truth: UMAX never released official Windows 7 drivers for the Astra 4100. The last official drivers were for Windows 98, Me, and 2000. : This lowers your system security