Windows 11 22H2+ blocks drivers with missing or invalid WHQL signatures. Always use the Microsoft Update Catalog or OEM-signed packages.

Identify your laptop brand and visit their support site. This ensures the driver is tweaked specifically for your hardware's antenna configuration.

If you cannot find your manufacturer's page, you can download the generic Microsoft-signed driver directly.

Since Realtek does not provide direct downloads for consumers on their website, you must download the driver from your computer manufacturer's support page (e.g., HP, Lenovo, ASUS) or use the Microsoft Update Catalog.

Technical Documentation Team Last Updated: 2025-01-15 Document Version: 1.0

Windows 11 usually includes a generic driver for this adapter, but it may not perform optimally (slow speeds or disconnections) until the official Realtek driver is installed.

To get your Realtek RTL8821CE adapter working correctly on Windows 11, it is recommended to perform a clean installation using the official driver from your computer manufacturer (e.g., HP, Dell, or Lenovo) rather than a generic third-party site . HP Support Community +1 1. Download the Driver Since this adapter is commonly used by specific manufacturers, you should visit their official support page to get the version verified for Windows 11: HP Users