If you own a legitimate CS5 license, Adobe may still allow you to download the installer from your account. Contact Adobe support for help—do not search for cracks.
Searching for a serial number list today is essentially a gauntlet of red flags: Adobe Illustrator Serial Number Cs5 List
Running CS5 on a modern OS (like Windows 11 or macOS Sonoma) is like trying to put a cassette tape into a Tesla. It’s buggy, prone to crashing, and often won't launch at all. The Modern Reality If you own a legitimate CS5 license, Adobe
The current version of Illustrator is subscription-based. While it requires a monthly fee, you get constant updates, cloud syncing, and compatibility with the latest hardware (including Apple Silicon M1/M2/M3 chips). 2. Affinity Designer (The "Buy Once" Alternative) prone to crashing