What backup software to use

WD External Drives External Drives for PC
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Dear all,

   I have a problem with my wd elements 1TB hard disc. Till the last day i was using it now it is not working on my pc  i tried to check anothen pc still not working it.its LED light is blinking also it showing on my Device and printers but it is not showing on my Computer so plsss help me to go forword with this wd hard drive