The driver doesn't have a digital signature or has been signed with a digital signature that wasn't verified by a certification authority. Windows can't verify the publisher of this driver software If you see any of the following notifications when you're installing a driver, you should stop the installation and go to your device manufacturer's website to get a digitally signed driver for your device. If a driver has been signed by a publisher that has verified its identity with a certification authority, you can be confident that the driver comes from that publisher and hasn't been changed. We recommend that you don't install unsigned or changed drivers.Ī digitally signed driver includes a digital signature, which is an electronic security mark that indicates the publisher of software and whether someone has tampered with it since it was signed. Occasionally, you might see a notification that a driver is unsigned, has been changed since it was signed, or can't be installed by Windows.

You might be asked for an admin password or to confirm your choice. Tap or click the Driver tab, tap or click Update Driver, and then follow the instructions. For example, to see your video card, tap or click Display adapters, and then double-tap or double-click the video card name. In the list of hardware categories, double-tap or double-click the category your device is in and then double-tap or double-click the device you want. (If you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, and then click Search.)Įnter Device Manager in the search box, and tap or click Device Manager. Swipe in from the right edge of the screen, and then tap Search. You must be signed in as an administrator to follow these steps. If the driver you got from a disc or downloaded from a website doesn't install itself, you might need to install manually. You can usually double-tap or double-click the downloaded file to install the driver on your PC. Download the latest driver for your device, and follow the installation instructions on the website. Driver updates are often available in the support section of their website. You can also search for new drivers on the manufacturer's website. Before you install a driver from a disc, check the info that comes with it to be sure it supports your current version of Windows. If your device came with a disc, it might contain software that installs a driver.

Libertta win dows 8