If numerous tips friends and countless commercials on the internet played a role and you do decide to install an operating system Win 10, and after its installation began very clear that this version of the operating system completely is not for you, then you should think about in order to produce roll back Windows 10 to Windows 8. Talking about "rolling back" the operating system is, at least for the reason that the latest version of the operating system has for this purpose full capabilities, allowing it to when upgrading from an earlier version to the later, to keep the system files of the first in the same condition, what they were before the upgrade. All files to restore the operating system are stored in a folder called «Windows.old». It is clear that the folder «Windows.old» can be removed, allowing you to free up some hard disk space as needed, but until such time as you decide the exact use of any one version of the operating system, do not recommend this do.
Suppose you: installed Windows 10, do not delete the folder «Windows.old» and has not been more than 30 days from the date you started to use the new operating system, in this case, you have a full chance and simple as possible without any problems recover. But if some of the factors you do not, then the operating system rollback, you can simply just forget.
In order to make roll back Windows 10 to Windows 8, you need to click a combination of "hot keys» «Windows + I», which will open the settings screen. Now, find the item "Updating and Security" and click on it, and after that, you need to find the button "Restore".
Once you do, you will be able to see that (is what it was before the upgrade to the "tens" will indicate the operating system version) on the right side appears in the window of the "Back to Windows X». 
It remains only in the confirmation window of their actions on the operating system rollback to agree with the actions taken by you and then simply follow the directions in which everything will be clear described, you just need to agree with specific actions or to abandon them.
After roll back Windows 10 to Windows 8 will be fully completed, we recommend that you upgrade your operating system, drivers, and test the functionality of third-party software, as it is likely that you will have to reinstall it on the new one.
