If your drive is not recognized or the controller is missing from , follow these steps:

Diagnostic commands to run (copy/paste)

If you still see the yellow exclamation mark after all troubleshooting, the controller hardware might be failing, or the Windows 11 installation is corrupted. In that case, run chkdsk /f /r and consider a clean Windows 11 installation with AHCI enabled from the start.

When you install Windows 11, the operating system automatically loads the or storahci.sys driver. You don’t need to search for: