As we understand, your wireless connection is not working after you attempted to update the driver in device manager. Please review review the following information about this matter:
- When you attempt to "Update the drivers" from device manager, it will try to locate and install drivers from Microsoft's database (in-box drivers). It is always recommended to use the drivers from the Computer manufacturer, or from Intel.
You can try doing a clean install of the drivers following these steps:
1. Obtain the WiFi drivers from the Computer Manufacturer Support. As second option use the ones available at Intel® Download Center
2. Go to Control Panel - Programs and Features and Uninstall "Intel® PROSet/Wireless Software", if it is installed. When prompted, choose the option to "Discard settings".
3. In Control Panel - Device Manager - Network Adapters, right click on the Intel wireless adapter and Uninstall it. Make sure you mark the option to "Delete the driver software for this device".
4. Reboot the PC or scan for hardware changes, check device manager again and if an older driver is detected and installed, repeat the actions to uninstall and delete it as well. Repeat this process until the OS does not allow deleting the driver, or until the controller shows as Unknown Device.
5. Install the Intel® Wireless driver. During the first steps of PROSet/Wireless installation, you can customize the installation and install all driver components.