Drivers Actions USB Device
Get a USB device for which you will be writing the client driver. In most cases, you are provided with a USB device and its hardware specification. The specification describes device capabilities and the supported vendor commands. Use the specification to determine the functionality of the USB driver and the related design decisions. Note: The drivers for VN8900 do not support VN8910(A) anymore. CAUTION: For the devices VN8911, VN8912(A), and VN8914 the drivers on the device must also be updated. To do this the device must be connected via USB. The manual 'Accessories for Network Interfaces' is available for download (PDF). If you are using an older computer model (e.g. A Pentium 4 with Windows XP and USB 2.0 cameras), we suggest using driver 2.4.14. If you are using Windows 8, the latest driver 2.7.9 or newer is recommended for USB 2.0 and 3.0 cameras. Check Device Manager to see if the Apple Mobile Device USB driver is installed. Follow these steps to open Device Manager: Press the Windows and R key on your keyboard to open the Run command. In the Run window, enter devmgmt.msc, then click OK. Device Manager should open. Locate and expand the Universal Serial Bus controllers section.
Here is the answer to how do i get my computer to recognize a USB device. Try the offered troubleshooting steps if your USB drive is not detected, recognized or showing up while plugging in.
'I have an 8 GB Transcend flash drive. When I plug it in my laptop for data transfer, it is not even detected and I can not see it in My Computer. Why did this happen and is there any fix that I can try to get the USB device recognized?'
Five Steps to Get USB Recognized
Have you ever run into a similar USB device not recognized issue? The symptoms of the problem vary in different situations. You may
- Receive a USB device malfunctioned error in the lower right corner with 'The last USB device you connected to this computer malfunctioned, and Windows does not recognize it.' error message.
- See unknown USB device (device descriptor request failed) error in device manager.
- Get no error message but just find the USB drive not showing up in my Computer.
1 - Check If the USB Device is Recognized on Another Laptop.
If it is still not detected, it suggests that the USB device might be corrupted. Then you will need to check and repair disk errors.
If it is detected, move to the next step to check and fix the problem.
2 - Run Device Troubleshooter.
1) Go to Start > Control Panel > search 'troubleshooter' and then click 'Troubleshooting' > Hardware and Sound > Configure a Device.
2) Follow on-screen instruction, and click on Apply this fix if any problem is found.
This helps if USB device not recognized happens because of Windows miss other important updates hardware or due to software issues. If it doesn't work, move to step 3.
3 - Uninstall and re-install USB controllers
Drivers Actions USB Device
1) Open Device Manager.
2) Expand Universal Serial Bus controllers. Right-click a device and select Uninstall. Repeat for each device.
3) Restart your PC and your USB controllers will automatically re-installed.
Your computer will then recognize the USB device if the issue occurred because the currently loaded USB driver has become unstable or corrupted. And if the problem still exists, proceed to step 4.
4 - Disable USB selective suspend setting.
1) Click Start button, type power plan in the Search box, and then select Choose a power plan.
2) Next to your currently selected plan, select Change Plan Settings.
3) Select Change advanced power settings.
4) Select the box to expand USB Settings > USB selective suspend settings.
5) Select Plugged in, select the drop-down menu, and then select disabled.
6) If you're using a laptop, select Battery, select the drop-down menu, and then select disabled.
7) Select Apply > OK.
This method can help your computer recognize a USB device by preventing your USB external drive from powering down.
5 - Recover data and reformat the USB drive to make it recognized
These are all the troubleshooting steps that you can try to make your computer recognize a USB device. If none of them resolve your issue, our advice is to try EaseUS data recovery software to recover your data and then format the USB drive for repair.
Step 1. Run USB data recovery software.
Connect the USB flash drive to your computer and launch EaseUS USB data recovery software on your PC. Select your USB drive which marks as a removable disk, and click 'Scan' to start finding your lost files.
Step 2. Scan all lost files from USB.
EaseUS Data Recovery Wizard will thoroughly scan your USB flash drive and find all your lost data on it. After the scanning process, use the Filter feature to filter a specific file type. You can check and preview found USB files in this program.
Step 3. Restore all lost files from USB.
Drivers Actions Usb Device Adapter
A double-click will allow you to preview the file results. Choose the target files and click 'Recover' to save them to a secure location on your PC or other external storage devices.
Symptoms
If you quickly and repeatedly insert and remove a USB device, the USB port may stop responding. When the port is in this state, it no longer recognizes any USB device, and the USB device will not work.
This article helps you fix the problem.
Prerequisites
You must use administrative credentials to log on to Windows to perform some of the troubleshooting methods that are listed in this article. If this is your personal computer, you are likely already logged on with an administrator account. If this is a computer that is part of a network at work, you might have to ask the system administrator for help.
Resolution
To fix this problem, use the following methods in the order in which they are listed. After each method, check the USB device to see whether the problem is fixed. If the problem is not fixed, try the next method.
This article also includes a workaround that you can try if these methods do not work.
Method 1: Use Device Manager to scan for hardware changes
Use Device Manager to scan for hardware changes. After your computer scans for hardware changes, it might recognize the USB device that is connected to the USB port so that you can use the device.
To scan for hardware changes, follow these steps:
Click Start, and then click Run.
Note If you are running Windows Vista, click Start, and then use the Start Search box.Type devmgmt.msc, and then click OK. Device Manager opens.
In Device Manager, click your computer so that it is highlighted.
Click Action, and then click Scan for hardware changes.
Check the USB device to see whether it is working.
If scanning for hardware changes fixed the problem, you are finished. If this method did not fix the problem, go to Method 2.
Method 2: Restart the computer
If scanning for new hardware did not fix the problem, try restarting the computer. After the computer has restarted, check the USB device to see whether it is working.
If restarting the computer fixed the problem, you are finished. If this method did not fix the problem, go to Method 3.
Method 3: Disable and re-enable the USB controller
Use Device Manager to disable and re-enable all the USB controllers. This lets the controllers recover the USB port from its unresponsive condition. The USB controllers represent the USB ports in Device Manager. If you are not comfortable with advanced troubleshooting, try the steps in the 'Workaround' section.
To disable and re-enable the USB controllers, follow these steps:
Click Start, and then click Run.
Note If you are running Windows Vista, click Start, and then use the Start Search box.Type devmgmt.msc, and then click OK. Device Manager opens.
Expand Universal Serial Bus controllers.
Note You might have to scroll down the list to find this item.Right-click the first USB controller under Universal Serial Bus controllers, and then click Uninstall to remove it.
Repeat step 4 for each USB controller that is listed under Universal Serial Bus controllers.
Restart the computer. After the computer starts, Windows will automatically scan for hardware changes and reinstall all the USB controllers that you uninstalled.
Check the USB device to see whether it is working.
If the USB port recognizes the device and if you can use the device, you are finished.
If this method fixed the problem, you are finished. If this method did not fix the problem, go to the 'Workaround' section.
Workaround
If none of these methods worked for you, you can disable the Selective Suspend feature. However, be aware that when the Selective Suspend feature is disabled, all USB host controller drivers (and therefore all USB ports and connected USB devices) in the system are affected. Therefore, your computer cannot suspend any USB devices that are connected to it, and the USB devices can continue to use power while connected to the computer. Additionally, the Allow the computer to turn off this device to save power check box does not appear on the Power Management tab for the USB Root Hub.
This section is intended for an advanced computer user.
You can disable the USB Selective Suspend feature as a workaround by editing the registry. The USB device may become unresponsive because of a race condition in the Selective Suspend feature. The Selective Suspend feature suspends the USB device to efficiently maintain battery power by enabling the computer to turn off the USB device. However, sometimes this feature may not correctly wake up the USB device. Therefore, the USB device is unresponsive when you try to use it.
You might want to disable this feature for server products where power management is not important or required.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in WindowsTo disable the Selective Suspend feature, follow these steps:
Click Start, and then click Run.
Note If you are running Windows Vista, click Start, and then use the Start Search box.Type regedit, and then click OK. Registry Editor opens.
Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINESystemCurrentControlSetServicesUSB
If the DisableSelectiveSuspend registry entry is present, double-click it. If it is not present, create the entry. To create the entry, follow these steps:
On the Edit menu, point to New, and then click DWORD.
Type DisableSelectiveSuspend, and then press ENTER.
On the Edit menu, click Modify.
In the Value data field, type 1 to disable the Selective Suspend feature, and then click OK.
Now go to the 'Did this fix the problem?' section.
Cause
This problem may occur because of a timing issue that prevents the computer from detecting the USB device.
Microsoft and the hardware vendors that manufacture the chips that are used for USB have investigated the problem. However, the results were inconclusive because of the intermittent nature of the problem.
Status
Microsoft is researching this problem and will post more information in this article when the information becomes available.