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Can no longer see my external hdrive, also on start up it freezes my pc, can see it in the usb device but no volumes or access to it...

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  • Patrick Michaels
    Patrick Michaels May 11, 2010

    hmmm..sounds a lot like you're drivers are absent...any power glitches recently?

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Have you tried plugging it into another PC? If it freezes the other PC as well, it is likely that the hard drive inside the enclosure has failed.

Posted on Mar 16, 2008

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My PC has two USB controllers. How can I access the second one?


click start control panel administrative tools computer management device manager scroll down universal serial bus controllers you could see a yellow question / exclamation mark? ! or a red X

you will need to update/reinstall drivers

right click to reinstall drivers
if all are intact

you might purchase a usb 2 or 3card they almost install themselves and a very cheap on Ebay or

purchase a usb 4 or 5 port hub if you already have one
think about fixing the sound insteab of us


click start control panel administrative tools computer management device manager scroll to sound video and game controllers you might see a yellow question exclamation mark? ! or a red X Right click to
reinstall drivers


if your computer came with a motherboard disc the sound drivers could be on it

click start control panel sounds and audio volume advanced speakers make sure you have selected the

(appropriate speakers) also audio you will find 3 drop down lists make sure you have the correct settings there

click start control panel sounds and audio devices select advanced there might be a tick in the mute box untick it

if his does not fix the problem

click start control panel sounds and audio devices you can adjust the volume there also select speaker

volume you can change your settings there you can also tick in the box place icon in taskbar for any

further volume control settings you will need to right click on the speaker volume icon system select adjust volume


click start control panel sounds and audio volume advanced speakers select the appropriate speakers


from the drop down list or navigate to the device manager scroll to system devices + to expand system

speaker right click properties then select use this device (enable) also you might check


the speaker plug/outlets is usually at the back of the computer or if its a laptop on the side

you will have to open up the computer to check the lead attached to the rear of the input plug make

sure the connection is good with no dust as dust causes static electricity


clean your computer of dust using a fine air blower from a compressor making VERY sure that there is

no MOISTURE in the air line specifically around the sound card and the CPU central processing unit

dust causes static to build up in a computer


hope this helps

May 10, 2012 | PC Desktops

1 Answer

I have sahara n1356 laptop which freezes mouse and keyboard when i start it. what could be a problem


Try following tips:
Try to connect your keyboard and mouse directly to your laptop's USB ports (instead of using the USB hub) and see if they still freeze.
OR
It sounds like you're using an unpowered hub, which in my experience tends to cause most common errors with USB peripherals. It's definitely not recommended to connect any USB devices which aren't supplied with a power adapter (for instance some 2.5" external HDs and those small photo printers). These sort of devices should be connected directly to your laptop at all times.
You could also consider buying a powered hub, i.e. an USB hub which draws its power from a separate power adapter (and not your single laptop USB port).

if it doesn't work you can try this..

Click Start, and type device manager in the Start Search box.
Click Device Manager in the Programs list.
If you are prompted for an administrator password or confirmation, type your password or click Continue.
In the Device Manager dialog box, expand Universal Serial Bus controllers.
Right-click USB Root Hub and then click Properties.
In the USB Root Hub Properties dialog box, click the Power Management tab.
Remove the check from the Allow the computer to turn off this device to save power check box. Repeat steps 1 through 4 for each USB Root Hub listed in the Device Manager.

Under Power settings, check the 'USB settings' -> 'USB selective suspend settings' and make sure it is disabled.
Check Thumbnail, highlighted: Open Device manager, Double click on Universal Serial Bus controller at the bottom, Double Click USB Root Hub, Click Power Management on top right, Uncheck Allow Power...
Hope it works for you.

Sep 20, 2011 | Dell Dimension 8300 PC Desktop

3 Answers

Vista does not recognize my dynex external


Try this fix for missing usb ports by

Create a file with NOTEPAD containing the following lines and save it as FIX.REG
-------------------------- Use text after this line --------------------------------
REGEDIT4

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment]

"DEVMGR_SHOW_NONPRESENT_DEVICES"="1"
-------------------------- Use text before this line --------------------------------

Double click on FIX.REG and say yes to the Merge Into Registry question.

Unplug ALL USB devices.
Open Device Manager.
View, Show Hidden Devices.
Uninstall all devices under USB Controllers.
Uninstall all devices under Disk Drives that you know are not present.
Uninstall all devices under Storage Volumes. Say no to any reboot prompts until you are finished. Also, if a Storage Volume doesn't uninstall, ignore it and move to the next one.
If you have a yellow ? with unknown devices, uninstall all of the entries there as well.

When this is done, reboot TWICE.

Reconnect the USB devices and see if they're recognized properly.

NOTE: If you have a USB keyboard and/or mouse, you'll have to modify the instructions and leave enough parts for those to function. I don't have one yet, so I haven't had time to modify the instructions.

Sep 18, 2009 | PC Desktops

1 Answer

Device driver problem in Windows XP using a USB 2.0 device on a laptop with USB 1.1 controllers


Disable the USB 1.1 on-board option from the motherboard and install a 2 or 4 port USB 2.0 PCI/ISA card.

These cards are quite cheap these days and will do the trick rather than replacing the more expensive back up external hard drive ESATA/USB 2.0 hard drive.

Apr 14, 2009 | PC Desktops

2 Answers

Hi I have an external hard drive which for some reason is no longer showing up on my pc It doesnt show in device manager either. Actually they are 3 external MAXTOR hard drives that have the same...


Try deleting upper and lower filters in regedit (Registry Editor). See if this helps.

Also make sure that other USB devices can be read on your system.

Double check BIOS settings as well and try to reload default settings. (Make sure USB is on)

Jan 06, 2009 | PC Desktops

1 Answer

Hello , i have Windows Vista home premium edition installed in my HP laptop , i tried to connect USB external hard disk (containing Windows Server 20003 ) to my laptop USB port . means i want USB...


I do not believe that server 2003 is able to be ran from a USB device, I may be wrong, but I doubt it. To see what the error message is, you can be ready when it pops up and push your Pause/Break button on your keyboard, this should freeze the screen so you can see exactly what it says.
How did you install the server o/s to the external drive?

Dec 05, 2008 | PC Desktops

1 Answer

Acer Desktop crashing


Hi,
This could be an operating system fault ( Windows/Linux ) But more likely a Hardware or external connected device error.
Solution 1:) try re-installing Windows.

Solution 2:) remove any external add ons, printer/USB devices et,c. And run the computer without Them.
If the computer runs without error, you can pinpoint a faulty external or addon device.

Mike @ Compurepair.

Jun 11, 2008 | Acer Aspireā„¢ T180 PC Desktop

1 Answer

Start up Problem


hi carlogb,

1) dissconnect any external hardware like usb devices, modems, card reader, etc and try to restart windows.

2) If 1st step doesnt works, open the chasis and check all the cables are connected properly or not. Reseat all the cables if possible.

3) If 2nd step doesnt work, remove the cards like lan card or any other pci cards from the motherboard and restart computer again.

regards,
TheAssembler

Jun 06, 2008 | Dell Dimension 5150 (DIM515MIN) PC Desktop

1 Answer

Front usb freeze computer


Update sp2 to sp3 link
Download everest home from this link, run the program, click on motherboard then chipset, ID the northbridge and check for updates (google it) This should update all usb controllers and hubs to eliminate the "freeze".

Mar 27, 2008 | Dell Dimension 4600 PC Desktop

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