This is ridiculous and subjective. This seems completely arbitrary. Microsoft has set a deadline for your ability to move Windows 11 back to Windows 10. Why? There is no obvious reason.
Microsoft has returned to its "how do we make things as difficult as really expected" gimmick. Someone once described that Microsoft seems to have an unwritten statement: "Microsoft has developed incredible products-but before they appear-a certain level of unnecessary trouble and restriction should be implanted, all imaginable excitement has been eliminated."
Indeed, according to these ideas, Microsoft has done it again.
Maybe you have updated your Windows 10 PC to Windows 11 according to the operating method given by Microsoft. However, after you use Windows 11 for a while. You will find that possibly your machine looks slower. Maybe it is not very reliable on Windows 11. Possibly some of your peripherals are not well adapted to Windows 11. Perhaps the new UI changes will bother you.
No matter what your explanation is, there is no doubt that you need to go back to the old Windows 10. As it happens, this is very feasible. Microsoft makes it very simple. However, in Microsoft's usual distorted attitude, they first made certain things unimaginably simple, and then made her very difficult.
First, let's look at the simple one. Then we look at the difficult ones again. The simple method is really easy. From the "Start" menu, select "System", then "Restore" and then "Return." Answer the basic inquiry about why you want to return your Windows 10 device, and then pause. Soon, your machine will restart. At that time, it will gradually run Windows 10.
However, as Adam Savage said, "Disappointment is always an option." As shown in the screenshot below, you may not be able to access the "Back" option on your PC at this time. Why? As it happens, Microsoft closed the option after 10 days.
Sure, believe it or not. For other unknown reasons, Microsoft will allow you to return to Windows 10 within 10 days of upgrading to Windows 11. If you decide to use the old operating system on the 11th or 15th day, you are out of luck.
Upgrades to Windows 10 also have similar limitations. If you upgrade to Windows 10 and then need to return to Windows 7 or Windows 8, you can. However, at that time, the window to return to Windows was 30 days instead of 10 days.
In fact, there may be reasons why you rolled back to the previous version from a major Windows upgrade. The new operating system may have undergone too many redesigns or repairs. The old operating system may have too many patches or fixes. This makes perfect sense.
Of course, in any case, you can perform a clean installation of Windows 10 to get back to Windows 10. We have accepted this situation for a long time. However, when there is a more direct way to achieve a downgrade and there is no specific motivation to stop it, for an operating system vendor, setting a 10-day time limit is downright despicable.