I can also provide a guide on before you perform a clean install.
Visit the official Windows 8.1 download page on the Microsoft site. Iso windows 8 1 pro
Select your preferred language and choose the 64-bit or 32-bit architecture. 2. Creating Bootable Media I can also provide a guide on before
You will need a valid 25-character product key during or after installation. Iso windows 8 1 pro
Choose the Windows 8.1 edition (which typically includes Pro) from the dropdown.
Newer hardware may lack compatible drivers for this OS.
Use a utility like Rufus to burn the ISO to a USB flash drive.