I'm debating installing Ubuntu alongside W7 on my laptop so I can familiarize myself with that OS. I'd like to try Ubuntu first, and play a bit with the UI. I burned a Ubuntu live CD so that I can boot from CD and try that OS without actually installing it and without making any permanent changes to my current config, but I wanted to ask if there are any potential issues?
Any way booting to Ubuntu using the CD might somehow harm my current system/OS, or can I go right back to business as usual without any changes once I remove the CD?