I bought a previous acer all in one computer in 2019 that the screen or graphics card failed in.  I bought this computer as a replacement and was easily able to take out the hard drive from the previous computer and install it on this one.  There is a space for an additional hard drive internally.  I was able to preserve my passwords that I had stored on my browser using profile manager on firefox which was easy to find how to do online.  The space for an additional hard drive made the process simple.