I have the same keyboard back light setting in my Dell Precision 7520 laptop Bios. I just set it to 30 seconds and forget about it.
LOL That's to funny, but I see some truth to it.
I did Cinnamon on one of my test installs and had loads of fun with it. But it had to go... Because it was a test install and I needed the laptop for the next one.
Especially if you have a ton of Steam and Lutris games installed. Rebuilding all that from scratch is a real pain and a couple days work.
How much ram did you give your VM for Peppermint OS?
How much ram did you give you VM for Peppermint OS?
Did you check the iso's checksum/hash to make sure it is not corrupted? Is you USB stick/drive in good working condition? Maybe try a different one.
To be clear, you want to completely remove Peppermint 10 and install the new Debian version in it's place. If this is true backup all your data you want to save. There is no recovering Peppermint 10 after doing this. Startup a live session from the USB iso. Go in the menu and find the app "Disk". Select the hard drive in the laptop on the left side. Use the red X to delete all the partitions on the laptops disk. WARNING, this remove all data and distros form the laptop. Now the installer will see...