That's not much, 20 GB. What drive letter is it? Once you know that, you can put stuff on it using Windows Explorer or My Computer, just like you put it on a USB-stick. And on what drive is Windows installed?
Anyway, it doesn't involve the BIOS.
To upgrade it to a larger one these are the steps:
1. Buy that larger one and connect in an external enclosure to your laptop.
2. Clone the SSD to it using your favorite cloning program (some people use Clonezilla, which is free)
3. Open the case, remove the old SSD and mount the new one in the same place.
I have an Acer M5-481PT-6644 Laptop with both a HDD and a 20GB SSD (both stock).
First off, how do I access the SSD and put stuff on it? If it involves BIOS, the included .pdf manual says to press F2 at the boot screen but I can't seem to get that to work.
Anyway, the main question is, how do I go about upgrading my existing SSD with a higher capacity one (likely ~250GB)? What do I have to do to get it to work properly? Easy-to-follow/detailed instructions would be appreciated, as I am not too familiar with this sort of upgrade.