Format without loosing Data

The drives can be read by another computer, so the problem is most likely with OS/drivers on the HP giving the error. The specific drivers required to read each drive format could be missing/corrupt. Formatting shouldn't be performed on a drive that contains data unless backed up (redundantly). It may be possible to recover any lost data using free recovery software. Often a format preserves data, erases only the file directory.

I would try a system restore on the HP. If that fails to correct it install or upgrade format specific drivers (e.g. SD/SDXC drivers). Contact Magellan about the GPS: you may have formatted the device's system partition. It is unlikely your computer had the correct drivers to format that device, and it is likely formatted in an incompatible format (such as NTFS). Does Magellan provide a utility to read the device's memory? The SD card should be salvageable by formatting on another computer using the appropriate formatting utility. (Go to https://www.sdcard.org and navigate to their formatting utility.)

From that site: "If an SDXC memory card is used through the direct SD slot of a computer without SDXC driver installation, the card may not be recognized correctly and a message to prompt formatting may appear. In this case, do not format the SDXC memory card. It may erase the data on the SDXC memory card and format the card for a different file system, making it incompatible with SDXC devices."

USB hard drive is a portable external storage device that works just like a conventional hard drive. The device is simply plugged into a USB port on your computer as you would connect a flash drive. Unlike a flash drive, however, a USB hard drive can store a much larger amount of data. If your computer will not recognize your USB hard drive, you can try troubleshooting steps to resolve the problem.

Plug one end of the USB cable into the port on your hard drive and plug the other end into the USB port of your computer. Ensure that both ends of the cable are connected securely. Open "My Computer" (Windows XP) or "Computer" (Windows Vista/7). The USB device should be listed as "removable disk" once it is plugged into the computer. If it is not listed among the available drives on your computer, proceed to the next step. Ensure that the data cable is working properly. Try another USB cable if you have one available. Disconnect all other USB devices from the computer as they may interfere with the operating system detecting the external hard drive. Reboot the computer if the USB hard drive is still not recognized. Plug the USB cable into another USB port and check to see if the device is detected. If you are using a USB hub, remove the device and plug the external hard drive directly into a USB port. If the computer still fails to recognize the device, the external hard drive itself may be experiencing a hardware problem. Check the status of the hard drive in the "Device Manager" window. Under Windows XP, right click "My Computer" and select "Device Manager." For Windows Vista and Windows 7, click the "Windows" button in the lower left corner of the screen, then type "Computer Management" in the search bar and press "Enter." Select "Device Manager" in the "Computer Management" window. In the Device Manager window, click the "+" sign that appears beside "Disk Drives." If the external drive is not listed, click "Other Devices" in the Device Manager window and see if an "Unknown Device" appears. The external hard drive may have been detected but the device is not working properly. If it is still under warranty, take the device to the computer store where it was purchased to have it repaired or replaced. Hope this helps.

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A USB hard drive is a portable external storage device that works just like a conventional hard drive.

The device is simply plugged into a USB port on your computer as you would connect a flash drive.

Unlike a flash drive, however, a USB hard drive can store a much larger amount of data.

If your computer will not recognize your USB hard drive, you can try troubleshooting steps to resolve the problem.

Plug one end of the USB cable into the port on your hard drive and plug the other end into the USB port of your computer. Ensure that both ends of the cable are connected securely.

Open "My Computer" (Windows XP) or "Computer" (Windows Vista/7).

The USB device should be listed as "removable disk" once it is plugged into the computer.

If it is not listed among the available drives on your computer, proceed to the next step.

Ensure that the data cable is working properly.

Try another USB cable if you have one available.

Disconnect all other USB devices from the computer as they may interfere with the operating system detecting the external hard drive.

Reboot the computer if the USB hard drive is still not recognized.

Plug the USB cable into another USB port and check to see if the device is detected.

If you are using a USB hub, remove the device and plug the external hard drive directly into a USB port.

If the computer still fails to recognize the device, the external hard drive itself may be experiencing a hardware problem.

Check the status of the hard drive in the "Device Manager" window. Under Windows XP, right click "My Computer" and select "Device Manager."

For Windows Vista and Windows 7, click the "Windows" button in the lower left corner of the screen, then type "Computer Management" in the search bar and press "Enter."

Select "Device Manager" in the "Computer Management" window. In the Device Manager window, click the "+" sign that appears beside "Disk Drives."

If the external drive is not listed, click "Other Devices" in the Device Manager window and see if an "Unknown Device" appears.

The external hard drive may have been detected but the device is not working properly.

If it is still under warranty, take the device to the computer store where it was purchased to have it repaired or replaced.

Hope this helps

To Format Any Flash (USB) Drive

WARNING: This will permanently remove ALL data from your flash drive.

1) Insert the flash drive into a working usb port on your Windows PC.
2) Open "My Computer" in Windows XP or eariler OR "Computer" in Windows Vista/7
3) Right click on the Flash Drive (Usually labeled "Removable Disk")
4) Click "Format..."
5) Ensure that file system is "FAT32", Volume label is a name of your choosing, and that "Quick Format" is unchecked
6) Click "Start"
7) Windows will warn you that all data is about to be deleted. Click OK.
8) Once the format is complete, Windows will produce a pop-up window telling you so.

You now have a blank flash drive.

Sometimes when a flashmemory stick or USB external hard drive fails because it was not removed fromthe USB port properly. If the device is removed byjust pulling it out of the USB port, it can cause the flash device to fail, youmust click on the Safely Remove Hardware icon on the Task Bar and select thedevice you wish to remove and only do so when instructed to do so When the flash memoryUSB hard drive device appears to malfunction it maybe possible to restoreit by reformatting it. Insert the flash or USB hard drive into the USB port then Click on Control Panel - AdministrativeTools - Computer Management - Disk Management. Then right click on Disk 1removable drive and click Format. After the flash drive has been formatted itwill indicate that it is Healthy. You need to format the flash or external drive. Format thedrive as primary drive and in FAT32. (FAT32 will allow data to be exchangedbetween MACs and PCs also between XP/Vista and earlier versions of Windows). Otherwise format the USB flash drive in NTFS.
Insert the flash or external hard drive into the USB port then Click on ControlPanel - Administrative Tools - Computer Management - Disk Management.
Then right click on Disk 1 removable drive and click Format. After the flashdrive has been formatted it will indicate that it is Health

Check the USB port and/or the cable, check if windows can detect your device. If windows can detect but can't read data perform a format or delete the partition and then use any file or partition recovery software you want to use. They will automatically rebuild partition table and MBR according to your need. If windows can't detect, unplug your device, uninstall the driver from the device manager, restart your pc, plug your device again and see windows will automatically install the device.

Hi,
Your display drivers could be corrupt.
Boot the machine into safe mode. Right click on Computer and select manage from the sub menu.
When the window pops up select Device Manager.
A device list will populate. When it has look down the list for Display Adapters. Click on the + icon next to Display Adapters to it expands. Right click on the display adapter and select uninstall.

Restart the computer and let it boot in normal mode.
If it boots in normal mode let it detect the Display and install the drivers for it.
I would be a good idea to update the display drivers via the HP support website.


Regards.

Is the flash dish recognized by any other computer? If so , then the problem is with the ports. Maybe they are not turned on in the BIOS setup screen? If not then the flash disk is no longer operational. 

They are right, some DVs have this problem. If you can live without the ports, then do it. If you can't, replacement is the only option.

If you are running Windows ME, or Windows 2000, or Windows NT, or Windows XP or Windows Vista you do not need any drivers, Windows will detect any USB devices provided the USB device does not draw more power that the USB port can provide.
Your Maxtor external drive shoud have a power adapter connected to it before you insert it into the USB port.
If the Maxtor drive has not been partitioned and formated then you cannot use or see it until you do so.
Your manual should give you instructions to do so.
Basically you need to go into the Control Panel, then Administrative Tools, Then Computer Management, then Disk Management to create a partition and format the drive in NTFS file format if you are using Windows NT, XP or Vista.