Hello @lizzieamcc,
Would you mind trying the following steps to reinstall the Microsoft Visual C++ Redistributable and checking if it helps:
- Close all Adobe apps
- Uninstall all currently installed Microsoft Visual C Redistributable packages
- Install the latest Microsoft Visual C Redistributable package from here: (https://adobe.ly/4igLDmh)
- Relaunch Illustrator
Looking forward to hearing from you.
Anubhav