The Coolsand RDA USB driver is due to lack of signed drivers and Microsoft’s enforced kernel security. While forced installation is possible by disabling driver signature enforcement, this is not recommended for production or daily-driver systems . The most reliable and secure approach is to use a Windows 7 virtual machine or migrate to modern hardware.
Installation on Windows 10 often requires manual intervention because these drivers are rarely available through standard Windows Update channels. Coolsand/RDA USB Drivers Free with Full installation Method coolsand rda usb driver 64-bit windows 10
