Toshiba Canvio Slim II 0.5 TB purchased for file back up on a Dell XP Media center PC. Used the provided NTI Backup software and backed up critical data files using daily and weekly backup routines for four + months. Desktop Raid 0 array failed. Using Utlimate Boot Disk CD and a backup HDD on the desktop, I was able to see the files on the Canvio drive using Explorer. Now, I can't see the drive on the desktop. When I tried to use the Canvio drive on my XP laptop or my Windows 8.1 laptop, the drive is visible in device manager, but not accessible in explorer. Neither the serial number or the model number is recognized on the Toshiba website. Other similar models have only HDD password tool drivers.
I've read all articles I can find on the issue on this site, Toshiba's site, Microsoft's site and any many others.
I tried the following:
tried different USB ports on both laptops
tried 2.0 and 3.0 ports on the Windows 8.1 machine
removed the disk and rebooted
removed the drivers in device manager and re-installed
tried to use Disk manager to rename the drive (option not available)
removed the USB hubs and restarted
purchased a powered USB hub
reset the power settings to not allow the computer to power down the USB root hubs
Toshiba Canvio Slim II
S3600-A 500GB DC 1.0A 08/13
Any assistance would be appreciated.