Sometimes, overly aggressive antivirus software flags amtlib.dll as a false positive and moves it to quarantine. Open your Antivirus or Windows Security settings. Check the "Protection History" or "Quarantine" section.
Right-click "Command Prompt" and select . Type sfc /scannow and press Enter. Restart your computer once the process is complete. The Risks of Downloading amtlib.dll from Third-Party Sites adobe after effects cc 2017 amtlib.dll file download
If the file is there, restore it and add the Adobe folder to your "Exclusions" list. 3. Run a System File Checker (SFC) Scan Sometimes, overly aggressive antivirus software flags amtlib