It will reinstall Windows 10. Once you upgrade to Windows 10, your old Windows 8.1 recovery partition becomes inoperable. Backup your computer: When making significant changes to your computer such as updating the operating system, you should always backup.
At the Ready to install screen, confirm that the upgrade will install Windows 10 and keep your personal files and apps. Click Install and allow the upgrade to proceed. Your PC will then need to reboot before you can sign into Windows 10. Allow the OS to configure and update, then go through any setup screens. Replied on March 22, 2023. Report abuse. There have been free upgrade offer which if you already upgraded to Windows 10 and activated your Windows and now you roll back to Windows 8, you may upgrade to Windows 10 again. However, if you never upgraded to Windows 10, the free upgrade offer already ended and you will need a product key. Here's how you can still get a free Windows 10 upgrade | ZDNet Upgrade to Windows 10: FAQ - Windows Help - Microsoft Support Windows 10 supported upgrade paths:Many Windows 10 upgrade issues can be resolved by updating the computer BIOS and drivers after upgrade, and running Windows Update. For updated drivers and BIOS, see our Drivers and Downloads FAQs . For more information about Windows Update, see Microsoft's article, " Windows Update FAQ ."