About a year ago, I had a Win 11 Pro PC built using an Asus TUF Gaming Z790 WiFi motherboard, two Samsung ST4000DX005-3GH101 drives in RAID 1 configuration and an Intel Raptor Lake CPU. A week or so ago, it rebooted and Windows would not start, with an error message saying no bootable drives found. I rebooted manually and it came up OK. This week, Windows is saying it cannot activate and did I change the hardware? I am wondering if one of the SSD drives failed and it reverted to using one of the mirrored drives? The Samsung Magician software does not recognize mirrored drives - I knew that. I don't know if the builder used software or hardware mirroring - my bad. While I research that, is there any software that would recognize the drive status and give me any insight into the reason for the activation issue and, perhaps, some more info on the drive mirroring? Windows 11 Pro does not seem to have anything useful. I haven't found anything on the Asus site either.