External HDD Not Initialized, Unknown with I/O Error - Microsoft Community


hi,

i’m having problem on buffalo external hard drive recently, can’t open or format drive , not appearing on pc somehow showing on disk management disk 1 unknown 2048.00 gb not initialize, unallocated. , whenever try initializing disk, i’m getting i/o device error. tried troubleshooting on cmd i’m still getting error (i/o device error, cannot etc.)  i’m not interested on data in want reuse hard drive once again. , might cause of problem?

thanks,

reymund manaog

hi,

if have not yet try first:

shutdown pc after shut down disconnect external drive, if drive powered externally disconnect power supply, wait 20 seconds reconnect power supply drive. startup pc (with external drive still disconnected), login, wait 5 15 minutes, plug external drive usb, (or e-sata, firewire, whatever) port. should cause windows re-recognize device , initiate anew.

also, check support website of drives manufacturer available device firmware updates windows 10 os, in cases applicable external drive.

let know how goes and/or if need further assistance, we'll glad best can.

-richard



Windows / Windows 10 / Devices & drivers / PC



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