Your first trial of Illustrator or Photoshop can be got on the adobe.com site, here for Illustrator, or here for Photoshop. Then click on the “free trial” button at the top of the page on the right. Adobe are currently experimenting with giving people just a 7 day trial instead of the full 30 days which is quite annoying. Let’s hope you are lucky and get the 30 day one. I can’t figure out a pattern as to who gets what but think lucky thoughts before clicking.
Sometimes students ask me for links to download older versions of Photoshop and Illustrator if their laptop is really old or if their free Creative Cloud month/week has run out and they are not yet ready to subscribe full time. Adobe don’t offer a one off payment for their programs anymore so you will eventually have to subscribe to the creative cloud, latest version.
Here are the links to the adobe site where you can get a free trial of the various versions of Photoshop and Illustrator.
You are allowed to have different versions installed on your computer at the one time, with the same adobe account.
All these links send you to the Adobe site and you will need to log in with your (free) Adobe log-in details. After you get on the adobe site, scroll down the page to select the program you want to download/trial.