i can't open illustrator

start here - https://helpx.adobe.com/manage-account/kb/stop-creative-cloud-trial-mode-after-purchase.html

if that fails, proceed to these steps - https://helpx.adobe.com/enterprise/kb/resolve-trial-and-license-expired-errors.html

if that fails, https://helpx.adobe.com/download-install/kb/adobe-license-issues-keychain-credential-mgr.html

if those all fail, change your cc language.  eg, try international english

if that fails, change the install location

Does your computer meet the min-system requirements?

Are you using a current web browser -- Chrome, Firefox, MS Edge or Safari?

Most Creative Cloud apps work on these operating system with latest updates:

• Windows 11 (64-bit), Windows 10 versions 22H2, 21H2, 21H1;
• MacOS 14 (Sonoma), 13 (Ventura), 12 (Monterey).

- https://helpx.adobe.com/creative-cloud/system-requirements.html

- https://helpx.adobe.com/illustrator/system-requirements.html#ai-on-the-desktop

Hope that helps.

TLS 1.2 is now required to connect https://helpx.adobe.com/x-productkb/multi/eol-tls-support.html
-If you have Windows 7 be sure to do the EASYFIX.MSI in step 2 of the above link
-test your browser https://clienttest.ssllabs.com:8443/ssltest/viewMyClient.html
-http://helpx.adobe.com/x-productkb/policy-pricing/activation-network-issues.html
-https://helpx.adobe.com/download-install/kb/unable-to-reach-adobe-servers.html
-https://helpx.adobe.com/creative-cloud/kb/troubleshoot-download-install-logs.html#error113
-https://docs.microsoft.com/en-us/mem/configmgr/core/plan-design/security/enable-tls-1-2