Reading the reviews, one of the complaints with this model is that it comes with only 4 GB of RAM. While, I do agree that is low for Windows 10, further research on this model shows that it has 2 RAM slots for DDR4 RAM with a max upgrade to 32 GB. More then enough for my project.
Popping on Crucial.com, I bought some compatible RAM even before I turned on the laptop. It was a pleasant surprise to see when I flipped over the Acer Aspire E 15 to find that it was a flash from the past. Only 3 screws will remove the panel that will allow for RAM upgrade and HDD upgrade. Five minutes later more RAM was installed and ready for use. This was refreshing not having to remove the entire bezel or more. I wish more vendors would do this for all their models from low to mid to high. When you have to remove of 100 screws to change out anything in a laptop.... I am talking about you Apple and the MacBook Air, it introduces many, many errors even for the seasoned tech.
Anyway, below are pictures and step of upgrading my RAM. I will upgrade the hard drive to a SSD soon, just deciding on what I want/need. Until then, I will stay with the stock 1 TB 5400 RPM HDD. Slow, I know, but I always tell people to upgrade RAM 1st then HDD. So, I need to follow my own advice.
Turn off the computer, unplug from the power supply and flip over to remove 3 screws with a Phillips screw driver.
Carefully pry open the Hard Drive/RAM compartment
From here you can replace either the RAM or Hard Drive very easily. If you are in an area where there is a lot of static charge, be careful and take precautions to reduce that risk.
After replacement of RAM and/or Hard Drive replace the compartment cover and replace the screws. I found it is easier to start putting the compartment back from the bottom (away from the screws) up.
Flip back over, plug in power supply and give it a go. It is always a good idea to run a memory test for good measure.