TUTORIAL- format, install, reinstall windows 8.1 pro 64 bit. How to format & reinstall Windows8.1. BACK UP ALL DATA FIRST! You should have a full version disk & valid Certificate of Authenticity C.O.A. sticker product key for Microsoft Windows 8 Professional. I show how to boot into the system BIOS to change the boot order for you system so it will boot from dvd/cd. Press esc, F1 or F2 to boot into the system BIOS to change the boot order for you system so it will boot from dvd/cd. Complete hard drive format of the operating system and all partitions on a dell desktop pc. After booting back up to the desktop, you will need to complete all windows updates. Then check the device manager to install any missing motherboard or chipset drivers. Also to verify that windows is activated! How do I install Windows 8 or Windows 8.1. hardware and operating system issues.
Download Official Windows 8.1 .ISO or .IMG Files: windows.microsoft.com/en-us/windows-8/create-reset-refresh-media
How To Burn Bootable .ISO/.IMG Files To DVD/CD-youtu.be/LGzlgIfEGOM