Open the Creative Cloud desktop app.
Last updated on
Jul 30, 2025
Learn how to resolve error code 100 "gccustomhook could not be found" during app installation.
Error code 100 indicates that the installer could not locate the gccustomhook file.
Solution
Follow these steps to resolve the error:
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On the right panel, select Updates > Check for updates.
Once the update check is complete, the app will automatically fix the Adobe Genuine Service binary issue.
