I don't know. If you have a recent full image backup from before you signed up for it, you might try restoring your entire machine from that. But I don't honestly know if that would do it. It's what I would try if it was me.
You may have just asked the $64,000 question.
I went to the MS site and they said to right click on the Windows 10 upgrade button on the right side of the lower task bar and click on “Check Upgrade Status” - then it said to click on “cancel” but there is no ‘cancel’ it just says “All done for now” no place to click ‘cancel’ ....
I’ll just take $500 and go shopping if that’s okay.
No doubt there will be EULA’s (End User Licensing Agreement) and you’ll have an opportunity to opt out if you wish.