How to restore Win10 to the previous version of Windows How to restore Win10 to Win7 or Win8.1

It is easy to restore from Windows 10 to the previous version, but there are some small places to pay attention to.

First, restoring from Windows 10 to the previous version requires that your system be upgraded. If you are using a clean installation, then it is unlikely that you will be installed backwards. More serious than this, if you upgrade to Windows 10 for more than a month, then you probably can't revert to the previous version of Windows, because in order to free up more disk space, Windows 10 will The old installation file is automatically deleted one month after the upgrade.

If you follow the troublesome parameters in the instruction manual for system recovery, it is tantamount to playing the brain-sequencing star game. So in this article we will teach you how to recover quickly and easily, as long as you keep the old version of the installation files.

How to restore to Windows 7 or Windows 8.1

Windows-old-screenshot

First of all, please confirm that the old version of the installation file is still on the hard disk, if you are after the upgrade If you have used any version of the disk cleaning tool, even if it is a built-in tool for Windows, then it is likely that the old installation files have been cleaned up, and as mentioned before, if the upgrade is more than a month, Windows will automatically The version of the installation file is cleaned up. If not, you will find the Windows.old folder here at C:\\Windows.old.

If everything is not too late, you can go to Settings > Update & Security > Recovery. There you will see a button that says to return to Windows 7 or Windows 8.1. In this way, all you have to do is click the Start button and Windows will follow the process to help you recover to Windows 7 or 8.1.

But if you don't see this option, chances are too late. Of course there are other ways to help you get back to Windows 7 or 8.1, but this will be more complicated.

Performing a clean installation

Cleaning the installation is a long and complicated process, but if you save the previous Windows 7 or 8.1 user serial number, it will save you some time. Returning to the previous operating system version does not only require a serial number, you also need to perform a clean installation, because you can't revert to the previous version by downgrading.

Windows-iso-download-microsoft

Fortunately, you don't need to find the installation CD you originally purchased, although you can save the downloaded image file if the CD is at your fingertips. time. You can download the Windows 7 ISO file directly from Microsoft's official website, as long as your serial number is still valid. For Windows 8.1, you don't need a product serial number for a clean installation, just follow the steps on the Microsoft Support page.

After downloading the ISO image file, the next step is to use the Microsoft download tool to burn the ISO file to a CD or to make a bootable USB flash drive. Don't worry about how to burn a disc and make a bootable USB stick. Microsoft's tools will help you step through the steps.

After all the above work is done, be sure to back up important files before proceeding with the system recovery, because the upcoming installation is clean, which means that all system files will be overwritten.

After backing up important information and data, all you have to do is insert the installation CD or bootable U disk, launch the installer and follow the steps. If the computer you bought is pre-installed with Windows 10 (you will find the Windows 10 logo on the shell), then things will get more trouble, because Windows 10 can't be downgraded, so you need to buy a Windows 7 or 8.1. Product serial number before performing a clean installation.

Conclusion

In one sentence, it is very simple to restore to the previous version of Windows, it only takes some time. But be careful, if you just want to take a look or accidentally upgrade your system to Windows 10, remember that if you want to quickly revert to the previous version, don't exceed 30 days.