Originally Posted by spiderman7895
I have successfully running Freecom External 160 Gb Harddrive and Enter 2.5” HDD External Case without Drivers on my computer.
I don't have the slightest clue what the above sentence means so I cannot make any comment about it.
All modern external USB hard drives are plug and play in Windows XP so there is no driver needed. What is needed is a working USB port. So did you look in Device Manager to insure the USB port(s) are working properly? Did you try going to the Seagate website to see if any software was available that will make installation of the hard drive possible? I own 4 different USB drives that I built and none of them require any driver in Windows XP. By default, driver files required to install the drive are written to the hard drive during installation of the OS. Unless you have removed (or deleted) those files, then they will still be there to install the external USB drive.
You may need to try using the special "Y" cable to test to see if that will fix your problem. Especially if the hard drive does not have an external power supply. Using the "Y" cable will double the available current to the hard drive.
Since you say it also fails to work on another laptop leads me to believe you have a problem with the external hard drive. Has it ever worked? Is it new or used? Did you build it from components or was it factory made? It's also possible that your computer power supply is inadequate to power all the hardware in/on your system.
Cable length should be kept to a maximum of not over 1 meter. The USB drive should be detected and installed automatically within 5~6 seconds of plugging it into a working USB port. You should also have updated anti-virus and anti-malware software installed. If you don't then you could have some nasty preventing proper detection/installation of the USB drive.