Issue while sfdx:retrieve using Windows 7 - Getting Node.js is only supported on Windows 8.1 or higher. Setting the NODE_SKIP_PLATFORM_CHECK environment variable to 1 skips this check, but Node.js might not execute correctly.

[vikyaiyer]

[github-actions]

Thank you for filing this issue. We appreciate your feedback and will review the issue as soon as possible. Remember, however, that GitHub isn't a mechanism for receiving support under any agreement or SLA. If you require immediate assistance, contact Salesforce Customer Support.

[vikyaiyer]

Sharing the link of similar issue on Nodejs forum

[mshanemc]

Salesforce CLI is based on node, which dropped support for Windows 7 when Microsoft stopped supporting it.

https://support.microsoft.com/en-us/windows/windows-7-support-ended-on-january-14-2020-b75d4580-2cc7-895a-2c9c-1466d9a53962

You can try the NODE_SKIP_PLATFORM_CHECK.