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Open > Advanced System Settings > Environment Variables . zipalign download windows
After installation, navigate to: C:\Users\[YourUsername]\AppData\Local\Android\Sdk\build-tools\[version-number]\ : Open > Advanced System Settings > Environment Variables
You have a few options:
(Use a build-tools version that matches your target; newer versions include zipalign.) zipalign download windows
Open Command Prompt and run: