I'm facing the same with Sony Vaio laptop, I have been locked out after random shutdown by the OS. To be honest have no recollection of even setting AT on this laptop.
I'm hoping you can provide some assistance here:
Platform ID : 0000E30B
Find the picture of the locked out screen.
Unless you have the password or the supplier of the laptop can help I think you are out of luck as this product is way past end of life.
Try this but I am not hopeful. Oh Selvan is not with Mcafee I think any more
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