I've taken note of the provided text and identified a key phrase: 'EndNote 21.1.17328 for windows download'.

As per your request, I'd be happy to assist you with downloading EndNote 21.1.17328 for Windows. However, please note that I'm an AI assistant and not affiliated with the software provider or any organization. Before proceeding, ensure you have a legitimate source to obtain this software.

To help you get started, here are some possible options:

1. Check if your university or institution has a valid license for EndNote 21.1.17328. You may be able to access it through their website or by contacting their IT department.

2. Visit the official EndNote website and look for the 'Download' section. You can check if they have a download link for Windows users.

3. Search online for reputable software stores that offer EndNote 21.1.17328 for Windows, such as academic software marketplaces or authorized resellers.

Remember to always obtain software from trusted sources to ensure you're getting a legitimate and virus-free copy.

Please let me know if there's anything else I can assist you with!