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Windows 7: external hard drive disappears and reappears on drives list

06 Sep 2012   #1

Windows 7 Home Premium 64 bit
external hard drive disappears and reappears on drives list

after searching for some answers on the forums, i've been moved to post a separate thread. i have an external hard drive that disappears for some seconds only to reappear again on my list of drives. my computer alerts as if the external drive were dismounting then remounting. i have run various checks and nothing is presenting as abnormal or of issue. has anybody else experience this, what effect is it having on my computer and what can be done about it? thank you for any help/info. raze

My System SpecsSystem Spec
06 Sep 2012   #2

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit

Quote   Quote: Originally Posted by rkainne View Post
i have run various checks and nothing is presenting as abnormal or of issue.
Describe these various checks.

Have you run the hard drive manufacturer's disk utility?

Does this happen if you use another set of drive cables?

Does this happen if the hard drive is connected to some other USB port?
My System SpecsSystem Spec
06 Sep 2012   #3

Windows 7 Home Premium 32 bit

Does the same thing happen when you attach your external drive to another PC?

If it does, then a faulty cable/loose connection or faulty electronics in your external HDD may be the cause.

If changing the cable does not nelp, it is almost certain that the drive electronics is faulty.

Putting the drive ( of course after pulling it out from the original case) in a new external case should most probably resolve the problem.

Before doing all this try to recover as much data as possible when it is in a good mood.
My System SpecsSystem Spec

15 Sep 2012   #4

Windows 7 Home Premium 64 bit

thx for the information. i will try out your suggestions and post my results when through. thx again and take care-- raze
My System SpecsSystem Spec

 external hard drive disappears and reappears on drives list

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