Q: My scanner is a HP Scanjet 4370 and i no longer have the disk that came with it
A: You can download the drivers here. http://h20000.www2.hp.com/bizsupport/TechSupport/DriverDownload.jsp?lang=en&cc=us&prodNameId=457534&taskId=135&prodTypeId=15179&prodSeriesId=457533&lang=en&cc=us