Hi there! I understand you're having trouble with the ESTA application where it won't save or move forward because it's flagging fields that aren't required. That sounds a bit confusing. Could you tell me which fields it's flagging or give me more details about what you're seeing on the screen? That way, I can better guide you through a solution.

Meanwhile, here are some initial steps you can try:

1. Clear Browser Cache and Cookies: Sometimes, old data can interfere with form submissions. Since you're on Windows with a WebKit-based browser, clearing cache can help.

2. Double Check the Highlighted Fields: Occasionally, non-required fields might appear to be flagged due to format or hidden validation errors. Make sure any phone numbers, dates, or ID numbers are correctly filled as per instructions (even if not strictly required).

3. Disable Excessive Internet Security Settings or Extensions: Sometimes, high security settings or browser extensions block scripts that handle form validation or saving. Try temporarily disabling these or use an incognito/private window.

4. Try a Different Browser or Device: If possible, using another browser can help identify if the issue is browser-specific.

If you’ve already done any of these, please let me know so I can suggest more advanced fixes. Also, if there’s an error message or code showing, sharing that would help.

Are you okay to try these steps now?