CẬP NHẬT DRIVER CHO WIN 8.1

Windows comes with drivers for many devices, such as printers, displays, keyboards, and TVs. A driver is software that a device uses khổng lồ work with your PC. Every device needs a driver to work with your PC. So, in many cases, you can plug in a device, and it’ll work automatically.

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Windows can also tải về device software and info. This might include an ứng dụng that the device manufacturer created to lớn go with your device or info lượt thích the sản phẩm name, manufacturer, & Model number, khổng lồ help you distinguish between similar devices.

Drivers are updated occasionally. Windows can update them automatically, or you can install the updated drivers yourself. It"s important for you to lớn have sầu confidence in the updated drivers you install. Windows notifies you if it detects a suspicious or unsafe driver you shouldn"t install.


Windows Update checks for updated drivers and software for your devices and install them automatically. Keeping Windows Update on is a good way to make sure your devices continues khổng lồ work properly & you get the best experience with them.


Note: PCs running Windows RT 8.1 always automatically tải về and install drivers, apps, và info for your devices.


To check that automatic updating is on

Swipe in from the right edge of the screen, tap Settings, & then tap Change PC settings. (If you"re using a mouse, point lớn the lower-right corner of the screen, move the mouse pointer up, clichồng Settings, and then cliông xã Change PC settings.)

Tap or cliông xã Update và recovery, and then tap or cliông chồng Windows Update.

Tap or click Choose how updates get installed.

Under Important updates, choose Install updates automatically (recommended).


If your device came with a disc, it might contain software that installs a driver. Before you install a driver from a disc, check the info that comes with it lớn be sure it qplay.vns your current version of Windows.

You can also search for new drivers on the manufacturer"s trang web. Driver updates are often available in the tư vấn section of their trang web. Download the lademo driver for your device, & follow the installation instructions on the trang web. You can usually double-tap or double-cliông chồng the downloaded tệp tin to lớn install the driver on your PC.

If the driver you got from a disc or downloaded from a website doesn"t install itself, you might need to lớn install manually.

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To manually install a driver

You must be signed in as an administrator to follow these steps.

Swipe in from the right edge of the screen, and then tap Search. (If you"re using a mouse, point to lớn the lower-right corner of the screen, move the mouse pointer up, & then click Search.)

Enter Device Manager in the tìm kiếm box, & tap or cliông xã Device Manager.

In the menu of hardware categories, double-tap or double-click the category your device is in and then double-tap or double-cliông xã the device you want. For example, to see your video card, tap or clichồng Display adapters, and then double-tap or double-cliông xã the đoạn phim card name.

Tap or clichồng the Driver tab, tap or cliông xã Update Driver, & then follow the instructions.

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You might be asked for an admin password or lớn confirm your choice.


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. We recommend that you don"t install unsigned or changed drivers.

A digitally signed driver includes a digital signature, which is an electronic security mark that indicates the publisher of software và whether someone has tampered with it since it was signed. 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 và hasn"t been changed.

If you see any of the following notifications when you"re installing a driver, you should stop the installation & go to your device manufacturer"s trang web khổng lồ get a digitally signed driver for your device.


Windows can"t verify the publisher of this driver software

The driver doesn"t have a digital signature or has been signed with a digital signature that wasn"t verified by a certification authority. You should only install this driver if you got it from the manufacturer"s disc or from your system administrator.

This driver hasn"t been signed

The driver hasn"t been digitally signed by a verified publisher. The driver might have been changed to include malware that could harm your PC or steal info. In rare cases, legitimate publishers do change drivers after they"ve been digitally signed, but you should only install an unsigned driver if you got it from a device manufacturer"s disc.

Unfortunately, there"s no trustworthy source of info that indicates who has published an unsigned driver. Anyone can change the contents of an unsigned driver, & there"s no way to lớn know why it was changed. Most manufacturers now digitally sign the drivers they create before releasing them khổng lồ the public.

Windows requires a digitally signed driver

A driver that lacks a valid digital signature, or has a signature that was changed after it was signed, can"t be installed on 64-bit versions of Windows. You"ll only see this notification if you have sầu a 64-bit version of Windows và try to install such a driver on it.