If the Creative Cloud desktop app refuses to start, first check whether the Adobe servers are responding — open any browser and try logging into your account at adobe.com. If the site loads fine, the issue is local. Clear the OOBE cache folder (on Windows: %appdata%\Adobe\OOBE, on Mac: ~/Library/Application Support/Adobe/OOBE), then restart the app. If that doesn't help, run the Adobe Creative Cloud Cleaner Tool and reinstall from scratch.
Persistent crashes in Photoshop, Illustrator, or Premiere usually trace back to GPU driver conflicts or corrupted preferences. Go to Edit → Preferences → Performance and toggle off GPU acceleration. If the crash stops, update your graphics driver. To reset preferences, hold Alt+Ctrl+Shift (Windows) or Cmd+Opt+Shift (Mac) right as the app launches.
A login loop — where you enter credentials, get redirected, and end up back at the login screen — often means the local token is corrupted. Try these steps:
If a subscription renewal or one-time purchase fails, double-check that your billing address matches exactly what your bank has on file — even a mismatched zip code will trigger a decline. Adobe also blocks cards flagged for unusual activity. Try a different payment method or contact your bank to authorize the transaction before retrying.
Sync failures usually happen when the desktop app is outdated or disk quota is exceeded. Check your storage usage at assets.adobe.com. If you're within limits, sign out and back into the Creative Cloud app, then manually trigger sync by right-clicking the file and selecting 'Sync now'. Also make sure the app has firewall and network permissions on your machine.