You need the WinUSB driver so SDR software can talk to the device.
Step-by-step guide to install the RTL2832U (RTL-SDR) USB DVB-T receiver driver on Windows 11, including required files, driver installation methods, and troubleshooting tips. rtl2832u driver windows 11
Older versions of the RTL2832U driver (pre-2021) contain expired SHA-1 certificates. Windows 11 rejects them outright. Ensure you are using the latest Zadig (v2.8+), which installs a modern WinUSB driver without timestamp issues. You need the WinUSB driver so SDR software