If your external drive is recognized under Disk Management correctly but just lacks a drive letter then assign a drive letter to it through Disk Management.
The amount you lost after formatting those drives is correct. File systems use 1024 bytes while HDD manufacturers use 1000 bytes when advertising.
As for your missing driver you need to download and install the drivers provided by Asrock on their website. Don't use the built in driver updater through Device Manager.
Sent from my Nexus 7 using Tapatalk
The amount you lost after formatting those drives is correct. File systems use 1024 bytes while HDD manufacturers use 1000 bytes when advertising.
As for your missing driver you need to download and install the drivers provided by Asrock on their website. Don't use the built in driver updater through Device Manager.
Sent from my Nexus 7 using Tapatalk