Tip & How-To about Computers & Internet

External Hard Drives

Most problems involving "external hard drives" have 1 thing in common: "Machine won't recognize the hardware". This has been an issue ever since they were introduced to the market. In most cases, this involves a hardware conflict amongst USB devices. To verify if this is the case:

  1. Unplug all USB devices
  2. Reboot the computer
  3. Plug in the external hard drive
The hard drive should now be detected. Once detected, you may now plug your other USB devices back in.


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Acer Aspire one 722 windows 7 netbook. "Check cable connection" and "no bootable device--insert boot disk and press any key" are two common things appearing. The computer recognized hardrive, hardr


Hello, it looks like somehow the master boot record was erased from the hard drive, maybe viral? You mentioned the hard drive was recognized in the bios correct? If you need data from the hard drive the easiest way would be to pull the hard drive out and use an external hard drive enclosure to remove the data before you erase everything from the hard drive. If you dont need anything thing you can proceed to do a new install of Windows 7. Turn the computer on then hold alt and the f10 key to perform a factory recovery. This will erase everything and reinstall Windows 7. If this doesnt work then you will need a new hard drive and a bootable usb drive with Windows 7 on it. Hope this helps.

Feb 22, 2013 | Computers & Internet

1 Answer

My Toshiba Satellite 2805 S301 USB 1 port, does not recognize my Passport external Hard disk drive. What can I do to solve this problem ? Thank you, very much for your assistance.


Hi

assuming that the external hard disk is usb

i would try this

plug in the external hard drive
then go to device manager
then hover your mouse at the top of the box
and look for a icon that says scan for new hardware
then hit the scan icon
your laptop may or maynot recognize the external hard drive at this stage
now leaving it plugged in restart the laptop
and with any luck windows will now recognize it


good luck
hope you get sorted with it

Mar 20, 2011 | Toshiba Satellite 2805-S301 Notebook

2 Answers

External hard drive is not detected


Check Following Instructions:
1. Check your USB cable properly connected to the computer.
2. Go to My computer - right click on property - Hardware - Devices Manager - in below - USB Mass storage device - right click on this - and Uninstall - then again right click - click on Scan - it should be reload your USB drivers
your External Hard Drive will be detected

Apr 25, 2010 | Seagate USB 2.0 External Enclosure + 400GB...

2 Answers

Toshiba 160 GB Hard drive is not seen by 'new' computer


I have had a similar problems with external drives that only plug into a USB port (no ext power adapter). It is very common that the power supply fed through the USB port is inadequate to power an external hard drive. Some enclosures have a external A/C input to resolve this. Also, some computers (motherboards) only have a select number of USB ports that are powered. Since this device is detected by your other computer and not on the new one, my next attempt would be to locate a USB hub with external A/C power. There is a good chance that this will resolve the problem. By the way, when you plug in the drive does it spin up?

May 03, 2009 | Toshiba 120GB USB 2.0 Portable External...

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