The WLM 40U USB WiFi Adapter is a network device manufactured by Toshiba. Issues like weak Wi-Fi signal, slow DNS lookup, duplicate IP addresses, slow network and excessive CPU usage can be solved by updating this driver. Our archive contains Windows 8 and Windows 7 driver updates that match this device. Earlier operating systems such as Windows XP are also supported. Visitors have downloaded matching drivers over 4,432 times with an aggregate rating of 4.6 out of 5 stars. Find the best version below that matches your 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.
Regularly updating network drivers ensures optimal, secure, and compatible device performance with the latest network technologies, preventing potential problems and providing a better user experience.
Improved Performance
Faster data transfer speeds
Lower latency
More reliable connectivity
Compatibility
Ensures communication with latest network technologies and protocols
Necessary when operating systems and network hardware evolve
Security
Patches for known vulnerabilities
Protection against exploits and attacks targeting outdated drivers
Stability
Resolves issues causing crashes, freezes, or blue screen errors
Improves overall system stability
New Features
Support for newer Wi-Fi standards
Advanced power management options
Improved diagnostic tools
Troubleshooting
Often the first step in resolving network-related issues
Fixes for specific problems
Better compatibility with network environment
Manufacturer Support
Access to latest support and resources from device manufacturer
Important when encountering issues requiring manufacturer assistance
Once you download your new driver, then you need to install it. To install a driver in Windows, you will need to use a built-in utility called Device Manager. It allows you to see all of the devices recognized by your system, and the drivers associated with them.
Open the Start menu and type "Device Manager" in the search bar. Click on Device Manager when it appears in the search results.
In the Device Manager window, locate the device for which you want to install or update the driver. You can find devices under their respective categories, such as Display adapters, Sound, Video and Game Controllers, or Network adapters.
Right-click on the device and select Update driver from the context menu.
In the next window, choose: Browse my computer for driver software
Click on the Browse button and navigate to the location where you saved the downloaded driver files. Select the appropriate driver file and click OK. Then, click Next to begin the installation process.
After the installation is complete, you may be prompted to restart your computer for the changes to take effect. Save any open work and click Yes to restart your device.
Once your computer restarts, the newly installed or updated driver should be active, and your device should function properly with the latest driver software.
Visit our Driver Support Page for helpful step-by-step videos
Many device drivers are not updated through the Microsoft Windows Update service. If you are having trouble finding the right driver, stop searching and fix driver problems faster with the Automatic Driver Update Utility. Automatic updates could save you hours of time.
The Driver Update Utility automatically finds, downloads and installs the right driver for your hardware and operating system. It will Update all of your drivers in just a few clicks, and even backup your drivers before making any changes.
Once you download and run the utility, it will check for out-of-date or missing drivers:
When the scan is complete, the driver update utility will display a results page showing which drivers are missing or out-of-date. You can update individual drivers, or all of the necessary drivers with one click:
If you have had recent crashes, power outages, viruses or other computer problems, it is likely that your drivers may have become damaged. Browse the list above to find the driver that matches your device hardware. To see more matches, use our custom driver search engine to find the exact driver.
Visit the Toshiba website for the latest drivers, or to find the best driver for your specific model and Windows version.