If your Lenovo laptop has hardware issues, then it may cause sound to go out, Wi-Fi to not work, Touchpad to freeze, usb device not recognized, and others. All of these problems can be solved by installing the latest Lenovo ThinkPad L512 drivers.
HP G42-415DX Driver For Windows 7 64-bit
If there are missing, outdated or corrupted drivers on your HP G42-415DX, the continuity of your office work will be stuck. So it is important to download or update HP laptop drivers. HP G42-415DX drivers are available to download from hp.com, such as VGA driver, MTP USB driver, WLAN driver, etc. To resolve different HP