Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: External HDD disconnects/reconnects every time I use it

23 Jul 2012   #1

7 home premium 64bit
External HDD disconnects/reconnects every time I use it

I have a Hatchi external HDD that does NOT have its own power source, plugged into my Gateway DX4830 Win 7 home premium 64 bit desktop's USB 2.0. I think it might do the same thing on my crappy old laptop, but don't use it enough to remember nor care.

Every time I go to use anything in the HDD (hit save, open, etc.) it disconnects and reconnects a moment later (popping up autoplay, which annoys the heck out of me).

I have tried an identical cable from a broken version of the same drive, with the same results.

It does not disconnect randomly when not in use, but only when I ask the computer to do something involving it.

Running something (movies, a playlist on pause, even) in another window from the drive will keep it connected, but that's a bit of a pain and hogs some resources.

It does not disconnect in the middle of data transfer ever, even when I dumped the whole thing, which took a few hours.

No other devices plugged into either bay of USBs ever do this, so the symptoms are device-specific.

It did not always do this, but started many months ago. I didn't think much of it then.

Last week, I formatted (full format, not quick, just in case) from NTFS back to exFAT because it wouldn't read in my boyfriend's computer or xbox as NTFS. I'm not sure if this is related, but now it's not popping back up as a newly connected device after a disconnect, and I have to get up, unplug it, and plug it back in every time it disconnects.

It does have a little power jack spot on it. Would finding a power source that fits that help?

Is there a setting someplace? Those are my only two format options... anyone have any ideas what I might do?

Hitachi:.. that doesn't tell me much...
Product Description: EXTERNAL HDD - USB2.0 - 2.5", 750GB, HITACHI X MOBILE, BLACK
Size: 750 GB
Form Factor: 2.5" External
Interface: USB 2.0

Gateway: Gateway Support - Specifications

My System SpecsSystem Spec
23 Jul 2012   #2

Windows 7 Ultimate x64 SP1

Is that a powered USB port you are trying to use it with? I think those have a + sign after the USB logo.

Is this a front port on the computer? If so, try using one of the ports in the back that are mounted directly on the motherboard.

It sounds like the drive isn't getting enough power, especially if the issue happens when the drive is asked to spin up.
My System SpecsSystem Spec
23 Jul 2012   #3

MS Windows 7 Ultimate SP1 64-bit

reformat back to ntfs and then we can address your problem.
My System SpecsSystem Spec


 External HDD disconnects/reconnects every time I use it

Thread Tools

Similar help and support threads
Thread Forum
HP wireless random disconnects/reconnects
Hi everyone, this is my first time here so please bare with me. I have filled in my system specs as best I could. At this point I don't know if I have one problem or two. First, the laptop will randomly begin reconnecting to my wireless network ( I am the only one on it and none close by). It...
Network & Sharing
External HDD disconnects/reconnects
I have a Western Digital Elements 1 TB USB 2.0 External HDD. It doesn't matter what USB 2.0 header I connect it to, back or front of PC, an error message will eventually pop up in my tray/task bar telling me the device can perform faster, and the HDD disconnects/reconnects. Some times this will...
Hardware & Devices
Mouse disconnects and reconnects randomly
Every time while I am in the desktop my mouse randomly disconnects and than reconnects.It freezes and making usb sound.. tnx for help!!
General Discussion
Warcraft 3 disconnects all the time
Hey, so I've got this problem, that whenever i try to play Warcraft 3 Frozen Throne in battlenet, i get disconnected after about, 1-10minutes, and I am able to join into a new game right away, and tried with skype, that it wont disconnect me from there, so it isnt about my internet, right? Things...
Random internet disconnects and reconnects
New user here, I have an acer aspire 5739g running windows 7 64bit. Acer provided free upgrade from vista a couple months ago. Got the laptop back last july 2009. Just recently though i have been getting a lot of random internet disconnects, about every 5-15 minutes. I initially had a netgear...
Network & Sharing
iPhone continually disconnects/reconnects
Machine is a Dell Precision T3500 workstation, Xeon E5520 quad-core processor, 12GB RAM, shipped with Vista 64 Ult. and did in-place upgrade to 7 x64 Professional. iPhone appears to be recognized by Windows 7 and is able to sync with iTunes, but when connected, it continually switches between...
Hardware & Devices

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 10:20.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App