A yellow exclamation mark next to Universal Serial Bus (USB) Controller means the device driver is not installed correctly. In that case, some of your USB devices may not be recognized by PC. USB-RS232 Serial Converter Driver Download. Download the Windows installer for the USB RS-232 adaptor: Download for. 'Serialio.com USB Serial Port'. There are three ways to fix this issue. Read on to find the details about each way. Apply to Windows 10, 7, 8 & 8.1. Tip: If both of your usb keyboard and mouse stop working, use the touchpad, a PS2 mouse or a PS2 keyboard to apply the fix. Way 1: Uninstall the Device Driver Follow these steps: 1. In, right-click on the Universal Serial Bus (USB) Controller and select Uninstall. If prompted for confirmation, click the box next to Delete the driver software for this device (if you see this), and click OK button. Restart your PC then check if the driver is installed correctly. Way 2: Update the Chipset Drivers To fix the problem, you can try updating the Chipset drivers. Chipset drivers are responsible for controlling communication between various components in your system like USB devices, which includes the USB drivers. You can go to your PC manufacturer’s website to check for and download the latest chipset drivers. To download the correct drivers, you need to know the PC model and the operating system version. Usually, you can get the PC model on the PC. To get operating system version, click for the instructions. Alternatively, you can go to the motherboard’s website to download the chipset drivers. Way 3: Update All Drivers Using Driver Easy To fix the problem more quickly and easily, you can use to update all drivers. Driver Easy can scan your computer to detect all problem drivers in a few seconds. It has Free version and PRO version. Download Free version for a trial. It allows you to update drivers one at a time. Upgrade to PRO version if you find it helpful. With the PRO version, you can even update all drivers with just two clicks. Click Scan Now button. After scanning completes, you will get a list of new drivers. Click Update All button. Then all drivers including the USB controller drivers will be downloaded and installed automatically. You will enjoy free expert technical support guarantee with the PRO version. It means you can contact us for assistance regarding any technical issues. With our 30-day money back policy, you can ask for a full refund if you are not satisfied with the product. Please visit for more purchase details. Hope the ways here will help you solve the Universal Serial Bus (USB) Controller driver issue. Download the latest version of USB Serial Controller D drivers according to your computer's operating system. All downloads available on this website have been scanned by the latest anti-virus software and are guaranteed to be virus and malware-free. DriverGuide maintains an extensive archive of Windows drivers available for free download. We employ a team from around the world. They add hundreds of new drivers to our site every day. Browse the list below to find the driver that meets your needs. To see more matches, use our custom search engine to. To download, select the best match for your device. Then click the Download button. Discuss driver problems and ask for help from our community on our. Or you can and we will find it for you. Overall Rating: (203 ratings, 213 reviews) 35,967 Downloads Submitted Dec 4, 2003 by Martin Oerteby (DG Member): ' Problems with USB hub in Windows 98 SE???Search the newsgroups on the web, and you will find hundreds of desperate Windows 98 SE user who are facing this problem The lightballs will not lit when the USB hub is inserted in the computer's USB port. Instead an 'Unknown Device' is being installed in the.' Device Type: Other Devices Supported OS: Win 7 x64 File Version: Version 4.0.6.60 File Size: 5.6 MB File Name. Overall Rating: (592 ratings, 689 reviews) 111,770 Downloads Submitted Mar 25, 2002 by Jerry K (DG Staff Member): ' This new file contains all the usb drivers from the Windows 98SE installation disk Contains the following drivers Openhci.sys-- (v4.10.222)Usb.inf------ (v4.10.222)Usbaudio.sys- (v4.10.222)Usbcamd.sys-- (v4.10.222)Usbd.sys----- (v4.10.222)Usbdiag.sys-- (v4.10.222)Usbhub.sys--- (v4.10.222)Usbintel.sys.' Device Type: USB Supported OS: Win 2003 Server, Win XP Home, Win XP Pro, Win 2000 Workstation, Win 2000 Server, Win NT 4.0, Win NT 3.51, Win ME, Win 98SE, Win 98, Win 95, Win 3.11 File Version: Version 1.20.1207.1 Release Date: 2001-12-07 File Size: 93.6 KB File Name.
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