I have attempted to replace the larger of my two hard drives (an older style encased disc drive) with a Crucial 2tb ssd. I have used the manufacturer's cloning software to copy the contents of the previous drive onto the new one, but yet every time i insert the new drive and boot up, the system never initializes. Just a black screen. I think the laptop's keys light up...?

I would just love to have a smarter person's insight on this, especially now when it's so hard to have this stuff looked at in person, given the quarantine. Thanks!