I am sending ATA commands to SATA HDD using IOCTL_ATA_PASS_THROUGH in windows. IDENTIFY DEVICE (ECh) ATA commands returns 256 words of data.
Word 128, Bit 3 is set in the returned data, and according to ATA specs the bit denotes Device is in security frozen mode.
Because of that, ATA Security Commands are getting aborted. I tried power off/Hardware Reset as mentioned in ATA specs to disable Security Frozen mode.
But the device is stil in security frozen state. I am doubting on windows atapi / ataport driver for making HDD security frozen.

How to disable this security frozen mode?? Please Help me...