Please upgrade the Windows 11 build if required. Are you trying executing .\npu_sw_installer.exe to install driver. Have you downloaded it RyzenAI 1.2 official documentation?
Right-click the installer file from the AMD website and select “Run as Administrator.” Sometimes, admin privileges help the installer access system components correctly.
It’s frustrating that AMD marketed this as a premium feature and charged a high price for it, all while delivering incomplete functionality. They seemed to assume it wouldn't be essential to users anytime soon, but the demand came faster than expected, and now we’re left with an unfinished NPU. For the price paid, we expect a fully operational feature, not a bull**bleep**ing promise.
This error comes when you have uninstalled the existing NPU driver from device manager. Please run Device manager-> Actions-> "Scan for hardware changes" to resolve the issue and try installing driver again.