If Windows refuses to update, select Browse my computer for drivers -> Let me pick from a list of available drivers on my computer -> Have Disk , then manually point the wizard to the .inf file on your USB drive.
If the current driver is broken:
Realtek 8811CU (RTL8811CU) is a high-performance 802.11ac USB Wireless LAN NIC capable of speeds up to 433Mbps on the 5GHz band Latest Driver Versions (as of 2026) Windows 10/11 1030.52.1216.2025 realtek 8811cu wireless lan 80211ac usb nic update portable
Keeping the driver updated is key to ensuring stability, speed, and security. Here is a breakdown of the primary methods for Windows: If Windows refuses to update, select Browse my