Realtek Semiconductor Corp. Realtek 8821BU Wireless LAN 802.11ac USB NIC how to download and install the driver

Realtek 8821BU Wireless LAN 802.11ac USB NIC is a Network Adapters hardware device. This Windows driver was developed by Realtek Semiconductor Corp.. The hardware id of this driver is USB/VID_0BDA&PID_B821; this string has to match your hardware.

1. Manually install Realtek Semiconductor Corp. Realtek 8821BU Wireless LAN 802.11ac USB NIC driver

1. Download the setup file for Realtek Semiconductor Corp. Realtek 8821BU Wireless LAN 802.11ac USB NIC driver from the link below. This download link is for the driver version 1027.1.0902.2014 dated 2014-10-13.
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3. Start the driver setup file from a Windows account with administrative rights. If your User Access Control (UAC) is started then you will have to accept of the driver and run the setup with administrative rights.
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5. Go through the driver installation wizard, which should be pretty easy to follow. The driver installation wizard will analyze your PC for compatible devices and will install the driver.
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7. Restart your computer and enjoy the updated driver, it is as simple as that.
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Realtek Semiconductor Corp. applied a digital signature to this driver.
File size of the driver: 1658303 bytes (1.58 MB)
This driver was rated with an average of 4.4 stars by 66966 users.
This driver will work for the following versions of Windows:

• This driver works on Windows 8 64 bits
• This driver works on Windows 8.1 64 bits
• This driver works on Windows 10 64 bits
• This driver works on Windows 11 64 bits

2. Using DriverMax to install Realtek Semiconductor Corp. Realtek 8821BU Wireless LAN 802.11ac USB NIC driver

The advantage of using DriverMax is that it will install the driver for you in just a few seconds and it will keep each driver up to date. How can you install a driver with DriverMax? Let's take a look!

1. Start DriverMax and push on the yellow button named ~SCAN FOR DRIVER UPDATES NOW~. Wait for DriverMax to scan and analyze each driver on your computer.
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3. Take a look at the list of available driver updates. Scroll the list down until you locate the Realtek Semiconductor Corp. Realtek 8821BU Wireless LAN 802.11ac USB NIC driver. Click the Update button.
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5. Finished installing the driver!
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