My seagate 1 TB external hdd wont turn! Ive tried it with several computers and it doesn't work on any of them. I can hear it running but the computer says that its not there, please help it has a lot of important information on it that i cant afford to lose!
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It may be that it is dying or has died. Or it could be an issue with the enclosure. You can try and take it out of the enclosure and rig it directly to a desktop via SATA to see if it will go.