This will also solve the problem if the drive is formatted for another operating system, as described above. If the disk hasn't been formatted (it'll say 'Unallocated' under a black bar), right-click it and choose New Simple Volume. If it's offline, right-click the disk's name (e.g. If it does, make sure it's online and formatted.

Once Disk Management loads, scroll down to see if your disk appears in the list. Open the Start menu and type 'disk management,' and press Enter when the Create and Format Hard Disk Partitions option appears. If your drive is powered on but still isn't appearing in File Explorer, it's time to do some digging. How to Set Up Two-Factor Authentication.How to Record the Screen on Your Windows PC or Mac.How to Convert YouTube Videos to MP3 Files.How to Save Money on Your Cell Phone Bill.