1. Boot up your LINUX CD and see if Linux sees the drives.
2. Look at System Restore to when it worked.
If you end up using hard disk recovery software, try ZERO ASSUMPTION RECOVERY or GETDATABACK (see google for links.)
And a parting thought. Maybe they mapped drives to the letters you used on the USB drives. Fix? Un map all shares, reboot.
I lent ,y computer to my sister for a week, she was using a USB flash drive on it with no problems. I was using external hard drives beforehand on a daily basis with the computer - which has Windows Vista on it.
Since I have got it back my hard drives are not recognised, when I plug it in nothing happens, the computer works fine until I go on 'My computer' to view the drive, nothing is visible and the computer freezes. My computer closes and everything disappears, task bar etc, only the desktop and IE windows remain visible. I have to turn off the PC.
I've been looking for solutions, Ive cleaned the registry using Registry Booster 2 and also found solutions on forums involving the usbstor.inf file. I have made sure this is in the C:\WINDOWS\INF folder. Still hard drives are not recognised. Its really frustrating, in safe mode I can view and open the drives. Any ideas please,
kind regards, Alix