Question about PC Desktops
OK, this a long posting…
1. There could be a problem with the USB cable. Try to replace the cable with another one and check.
2. Some USB ports on laptop computers do not supply enough voltage, but most ports do..Try using both the USB connections on the Maxtor. Don't worry, one is for data transfer and the other is just for supplying extra voltage to the port. Or you can plug the drive to an AC outlet. If you had connected it to an external AC source, try unplugging your drive from the power outlet for a few seconds and then connecting it again.
3. If you have access to a secondary PC or laptop (maybe a friend's, or a local internet cafe), try connecting your drive to it and see if it works. If it does, it could indicate a problem with your computer or the USB port.
4. Check whether or not plug and play is disabled in the system BIOS. If it is, enable plug and play in the BIOS. If you are at least getting a notice at start up that the system has detected a new device and would you like to install it now warning pop up window, then you know plug and play is enabled, but if not, then it is not enabled.
Somtimes some applications or even spware can block plug and play abilities.
But like I said check your BIOS first.
Another easy way is to see if the system is seeing a new device but may not be warning you, is to go into the My Computer (right click)> System Properties> Hardware (tab)> Device Manager, and see of you are showing any yellow question marks. These yellow marks are for unknown attached devices Windows does not know what it is, and can not install because it has no driver in it's data base to recognize it.
If the hard drive is plugged in, do a re-start of the computer, navigate to the above mention Device Manager and see. It should be listed under the category "disk drives" there is an item with the name "ST350084 1A USB Device. If it still does not show any new devices. Plug and Play has been disabled. If not in the System Bio's, then possibly in the Administrator's System Services File.
5. The problem could also be caused by the Logical Disk Manager Administrative service and possibly the Logical Disk Manager service not being started or the services might be disabled. To solve the problem, click on the "Start" menu, click the "Run" command, and type in: services.msc , scroll down until you see both these services. Right click on each of the services about and select properties, on the general tab, change the startup type to "automatic" and click the start button under the service status. do this for both of the service
6. There could be a problem with the drive’s enclosure. Please contact the point of purchase and try to get a different enclosure/case, if possible.
7. Try changing change the pin on the external HDD from slave to master.
I also saw this on a different forum:
“OK, I will try to keep this as simple as I can. I common problem with external hard drives (any hard drive for that matter, just maybe a tad bit more common with external drives) is they lose there partition information. The very beginning sector of the hard drive has the MBR on it which holds your partition table. It is very likely that this might be corrupt or damage.
If your computer recognizes your drive (ie. if the drive is listed under disk management and/or in you device manager) but the drive shows nothing but unallocated space then this is most likely the problem. To access Disk Management in XP/2000:
Right click on My Computer.
Choose Manage (This will open the Computer Management window).
Go to the Storage category and select Disk Management
In this case DO NOT create a new partition in windows. This will reformat the drive and make your life very difficult.
You will need a tool that can repair your MBR (not fixmbr from the dos prompt) this almost never works unless your mbr is still readable in some way.
I use Acronis Disk Director Suite it works great for more than just this and is a great tool to have on hand. Other ones are Active Partition recovery (untested by me) and Partition Table Doctor (also untested).
In Acronis open the Recovery Expert tool. Tell it to try to recover a partition. Select the advanced and manual modes. What his will do is look at the old MBR and see if it could read anything from there (like the fixmbr command only acronis allows you to choose the repair) then it scans the entire drive, it just looks at the type of data in each sector so it works pretty fast. You will see a list (most I have ever had in 4, you might just get 1) of possible partitions. Select the one that looks correct (I just look at total drive space and how much free space it reports would be left to try and determine) and follow the on screen directions. Once your back in Acronis' main screen you will now see your drive with a drive letter. We aren't done yet though the change doesn't actually take effect until you commit it to the drive (there should be a little race flag icon at the top of the screen) that will write the MBR and not touch any other portion of the drive and it should just work. ( I have had a 100% success rate, although it isn't a guarantee). If it didn't work and you had more than 1 partition choice when doing the recovery try it again. You should be able to keep doing it as the only thing that get overwritten is the MBR.
For those of you that have already re-formatted the drive this will most likely not work. You may be able to do the steps to rebuild the partition as it was but you will most likely have a blank drive still (that doesn't mean that acronis didn't rebuild the partition correctly it is just because you have already formatted the drive) Acronis also has the ability to recover data, it works like the partition recover so just step through the process. It isn't nearly as successful though. Sometime you will get everything, sometimes nothing sometimes you will be able to see the files but they won't open because the data is corrupt. A general rule is the less you mess with the drive the better your chances.”
Here are some links to free software recovery tools on the net:
Hope that helps...Should you have any further questions, please feel free to post them here.
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Posted on Apr 26, 2008
Get the laptop replaced by the company if its under warranty,the data recovery is very expensive, if you need the data very badly please consult any other company the cost may down, or try using this software it may help, to download : http://www.download3000.com/download_46222.html
Posted on Apr 26, 2008
Well i think the hdd is defective,. take the chances..
Posted on Apr 26, 2008
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