What should I do if the upgraded Win10 user downgrade option Windows.old is no longer available?

What should I do if some of the upgraded Win10 user downgrade options are no longer available? Unconsciously, I have installed win10 for about a month. Some netizens found that their win10 downgrade option is no longer available. What should I do? Let's take a look at it

On July 29th, Windows 10 was officially released, and the first time to start pushing upgrades to Windows 7/8.1 users, not only completely free, but Microsoft promises to be able to downgrade within 30 days at any time. . If you upgraded to Windows 10 in the first place, there is no chance to "repent".

A lot of users who have upgraded first have confirmed that the downgrade option in Windows 10 is no longer available, but some people claim that it is still possible, which may be the time difference of system deployment. Of course, you can delete Windows 10 at any time, install the old system completely, but you need to enter the key, reactivate it, and your settings and data will be cleared, and the downgrade will completely retain everything.

If you need to reinstall Windows 10, don't worry about activation. As long as it is upgraded, you can install it without restriction. Microsoft will automatically activate it for you.