My external hardrive isn't showing up!

August 19, 2011 at 17:07:34
Specs: Macintosh OS X 10.4.11, 733MWZ/128MB SDRAM/40GB
What is wrong with it?
How do I fix my external drive without losing everything?
I have a Toshiba external hard drive of 320 GB. I plugged it in and it won't show up and isn't recognized at all. I've used it on Mac computer since I got it it 2009.

I'm aware that mac and pc have different formats. I've used this drive to transfer stuff from my mac to her pc before so I was just tested it out to see if it would work on both and it doesn't. I tried it on my mothers windows computer and it appears for 2 seconds then disappears. I then checked the disk manager(I believe) and it said that it appears to be working fine but it still won't show up.

Please help me! I have a lot of important documents/pictures on this.

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August 19, 2011 at 19:45:50
Assuming that you haven't dropped the external drive since it last worked properly and there's nothing wrong with the external enclosure's circuits....

Troubleshooting USB device problems including for flash drives, external drives, memory cards.
See Response 1:

It's about those things in Windows but similar applies to any operating system.

If your external enclosure is damaged or defective , it can be replaced cheaply.

If your hard drive is damaged or is failing there's not much you can do

The hard drive that's inside the external drive can be tested with hard drive manufacturer's diagnostics by connecting it to a different computer, one way or another.

Test your hard drive with hard drive manufacturer's diagnostics.

Seagate's SeaTools will test (almost) any brand of hard drive.

Do the long test.

The Dos bootable versions of SeaTools can test the hard drive when Windows will not load properly, or even when the drive has no data on it.

The Windows version of SeaTools must be used when the drive is in an external enclosure.

It the drive itself passes the test, any data problems on the drive can be fixed one way or another.

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August 19, 2011 at 22:48:00
Post the external drive info from disk management.

We can not fight new wars with old weapons, let he who desires peace prepare for war - PROPHET.

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October 25, 2011 at 11:59:35
Run a check disk on it and let it repair any problems it finds.

Open the "Computer" window
Right-click on the....

For more information click:

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