Then repeat the same procedure with the rest of the USB controllers marked by yellow exclamation marks or question marks one by one. Repeat the same procedure as above, and if your USB controller driver is not enabled automatically, right-click it and click Enable device.
I'm a technical writer for Driver Easy. Before finding my love for writing tech posts, I had passion for technology goes back much further. I love tinkering with computers, smartphones, and other tech toys. I write articles to help people solve their problems, whether it's a hardware issue or system error.
I'm inspired when my articles are of help, and that's what I have been aiming for. All I do every day is to write articles that are easy to read, and I do hope you find instructions in my posts easy to follow. To install Driver Easy Click. Sophie Luo Last Updated: 4 years ago. Driver Easy fixes your USB device not recognized problem instantly! If you plug in your USB flash drive, or your mobile phone, hoping to get down to your work, but only to find the balloon on the right corner popping up saying: USB device not recognized — The last USB device you connected to this computer malfunctioned, and Windows does not recognize it.
Then click on Let me pick from a list of device drivers on my computer at the bottom. Click Next and then click Close once it finishes installing it. At this point, the Device Manager screen should refresh and either the unknown device will still be there or it may now be recognized. As a last resort, you can also try uninstalling all USB devices from your system and then restarting.
I had a computer with 6 USB ports and only one port would not work properly. Instead of re-detecting everything, I was left with no USB port working, so be careful when using this method. Before you start with anything that is already working, uninstall the items with exclamation points or that are listed as Unknown Device.
It basically only shows the ones that are currently connected. You can view hidden devices in Device Manager by first opening a command prompt and then typing the following two commands:. If you see anything listed there that is greyed out or that says unknown device, go ahead and right-click on them and choose Uninstall. Hopefully, removing the older devices will allow the newer devices to work properly.
The best thing to do is to connect the device to another computer and see if it works or not. Possible Solution 1 — The other possible solutions are to try a different USB cable, if you have one lying around. This is a fairly rare problem, but I have seen it occur a few times over my many years doing technical support. Possible Solution 2 — Another possible solution is to take the device, connect it to another machine and if it does recognize the device properly, to then eject it properly from that computer before reconnecting it to the original computer.
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Deal with it today! What should you do in case of the atikmdag. The changes made on the computer power and the device driver should take effect, and your USB device will no longer report issues. If this is not the case, try the other three methods one by one. In this case, changing the USB selective suspend settings could help. In the Choose or customize a power plan window, click Change plan setting. Most computers have multiple root hubs so you can share the data bus across multiple devices.
Open Device Manager, find the Universal Serial Bus controllers option and single-click it to expand it. Go to the Power Management tab and uncheck the "Allow the computer to turn off this device to save power" option. Then, click OK to save your changes.
The six ways we outlined above are all the possible ways to fix the "USB device malfunctioned and not recognized" error. If one of the fixes worked, you should be able to access your USB and use the saved data on it again.
If you have resolved the problem but find that data is missing from your USB flash drive, you need third-party software to retrieve your data. Select the USB drive which is labeled as a removable disk, and click "Scan" to start looking for your lost files. When the scan process completes, use the Filter feature to filter by a specific file type. This program allows you to check and preview files found on your USB.
A double-click will allow you to preview the scan results. Select the target files to restore and click "Recover" to save them to a secure location on your PC or other external storage devices.
When you retrieve data from USB devices, we suggest you save retrieved files to a secure location to avoid further problems.
A few people encountered the issue more than once. They said the same USB device started malfunctioning again after a short period of repairing it. If this is the case with you, formatting and recreating a new partition can help.
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