In October 2025, Windows 10 will receive its final cumulative update , completing its ten-year lifecycle. However, Microsoft is allowing users to continue to have Windows 10 for a while.
The program Extended Security Update it will give one year of critical updates to regular users and three years to enterprises.
The end of support doesn't mean that Windows 10 will stop working, but it won't receive any updates, which is very dangerous.
Below we will see how you can "enroll" your computer in the free Extended Security Update program.
Note: As of July 16, the enrollment guide is available for preview builds of Windows 10 (Release Preview Channel), but will later be available to all users (this month and in August).
There are three ways to get extended security updates for Windows 10:
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We will look at the first option.
Follow the path Settings > Update & Security > Windows Update.
Download and install all available updates.
Return to the Settings app and find the banner “Windows 10 support ends in October 2025” or “Windows 10 support ends in October 2025”.
Click on “Enroll Now.”
Windows 10 will open the ESU wizard. Click Next.
If you're using a local account, Windows will ask you to sign in with a Microsoft account.
Once you sign in, you'll be presented with three available options: back up your settings and get updates for free, pay 1.000 Microsoft Rewards points, or pay $30.
Choose the first option.
Alternatively, before signing up, you can go to Settings > Accounts > Windows Backup and enable the “Remember my preferences” option with all the toggles. 
Another option is to launch the Windows Backup app from the Start menu, click “Back up this PC,” and wait for Windows 10 to save your data to the cloud.
If you've already backed up your settings, Windows will let you know that you're eligible for free updates.
If not, you will be prompted to create a backup.
Then click on “Register” and wait for the guide to write to you. 
Your system will now be enrolled in the Extended Security Update program, which will provide you with security updates for one year until October 13, 2026.
If you want more time with the operating system, read this
Windows 10 LTSC expires in 2027+2032 (what you can do)
Although the press releases will range from very select to rare, I said I'd pass...because sometimes the editors hide.
The update extension is not yet available to me, is it later or do I have to do something manually?