I had been using my Seagate Backup Plus 4TB USB 3.0 Desktop External Hard Drive for about 3 years (which is almost 90% full).
last week suddenly become unrecognized. from win10 disk management , I can see the hard drive but what suppose to be 1 (4tb) partition become 2 partitions raw.
using testdisk, I'm able to access the drive and copy out all the files without any error or corruption .
after copy out all files, I decide to delete partitions and format.
1. using win10 disk management
first I delete the 2 partitions then convert to gpt . no problem but when I quick format ntfs . it took very long then show fail. and the hdd disappear from disk management . I unplug the usb and re-plug in . it took more 5 minutes for the HDD appear in disk management. I retry format same result.
Next , I try devide into 2 partitions and format. same result failed.
2. using seagate discwizard
I try to create MBR advanced format . 1 partitions (4tb) created but when I format same result failed.
last I going back to disk management. this time I convert it back to MBR which created 2 partition (2TB and 1.6TB) only 2TB can be use. I do quick format and finish OK very fast .
I unplug and plug in the usb , my win10 very fast detect the HDD unlike when i create 4tb partition.
I did slow format on the 2TB partitions which took almost 5 hours. no error , no bad sector.
I had tried take out the HDD and put in other external HDD case, same issues problem .
I'm loss. I not sure whether the HDD is damage or not . There's no weird sound when boot and since no corruption on all files copy out , I assume the HDD is still working fine. if that case why when create 4tb partition is OK but when format failed?
any suggestion ?
last week suddenly become unrecognized. from win10 disk management , I can see the hard drive but what suppose to be 1 (4tb) partition become 2 partitions raw.
using testdisk, I'm able to access the drive and copy out all the files without any error or corruption .
after copy out all files, I decide to delete partitions and format.
1. using win10 disk management
first I delete the 2 partitions then convert to gpt . no problem but when I quick format ntfs . it took very long then show fail. and the hdd disappear from disk management . I unplug the usb and re-plug in . it took more 5 minutes for the HDD appear in disk management. I retry format same result.
Next , I try devide into 2 partitions and format. same result failed.
2. using seagate discwizard
I try to create MBR advanced format . 1 partitions (4tb) created but when I format same result failed.
last I going back to disk management. this time I convert it back to MBR which created 2 partition (2TB and 1.6TB) only 2TB can be use. I do quick format and finish OK very fast .
I unplug and plug in the usb , my win10 very fast detect the HDD unlike when i create 4tb partition.
I did slow format on the 2TB partitions which took almost 5 hours. no error , no bad sector.
I had tried take out the HDD and put in other external HDD case, same issues problem .
I'm loss. I not sure whether the HDD is damage or not . There's no weird sound when boot and since no corruption on all files copy out , I assume the HDD is still working fine. if that case why when create 4tb partition is OK but when format failed?
any suggestion ?
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