SSD replacement Manuel Requested

[Harprabh]

I just purchased the HP ENVY Curved All-in-One - 34-b135se and I would like to upgrade the 256 GB PCIe® NVMe™ M.2 SSD to the Samsung - 860 EVO 1TB Internal SATA Solid State Drive for Laptops. I was looking around support for a manul for the All-in-One and I could not find one. 

Questions:

Will the Samsung - 860 EVO 1TB Internal SATA Solid State Drive for Laptops be fine for this computer, such as size and so on ?

Is there any manuel or instructions I could have that will help me open up the all in one and replace the hard drive.

Also looking to replace the second 2TB rpm SATA with the same SSD. Unsure if this is possible. Do I need anthing to make the 2 smaller hard drvies fit??

Thank you for your time. 

[Eartha-Kitten-2]

Here is what HP isn't telling you:

First after removing the 7-screws (they mentioned) under the rubber feet, remove the model / serial / FCC label from the bottom of the machine. Discover the next 7-screws you'll need to remove. (Note: the silver screw (#8)  does not remove, only loosen till it clicks once.

Now get a small plastic pry tool and a flashlight. Look closely at the edge of the bottom panel against the back and  side edges. Here you'll see some (barely visible) indentations,  these are where you'll pry (carefully) with the plastic tool. Go around the back and both sides (again carefully). It will pop open and VOILA! You're in.

                                                                        The secret is now out.