Hello,
Thank you for posting in Q&A forum.
We have found a tutorial for configuring a proxy with a username and password and saving the username and password into Windows credentials. Please refer to:
How to Configure Proxy Server Settings (trustedproxies.com)
Please Note: This response contains links to third parties, which we provide for convenience of reference, and Microsoft cannot guarantee the validity of any information and content in this link.
I hope the information above is helpful.
If you have any questions or concerns, please feel free to let us know.
Best regards,
Jill Zhou
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