Hi buddy,
For me it sounds like that the hard drive is malfunctioning and needs replacing. Normally it should be always recognized properly after every restart.
But it would be interesting to know what you do if HDD will not be recognized anymore. Do you shut down the computer or what exactly?
Is your notebook under warranty?
If yes I would get in contact with an authorized service provider and ask the guys for help. They can check the HDD and replace it if it’s necessary. That’s no problem for the guys and warranty repair is free.
