So I tried re-installing Windows 10 on my desktop today, I used the direct link from Microsoft, and when I try to install Windows 10 Pro, it gives me an error Microsoft Licensed-Agreement Cant Find. Back then, I didn't counter any error.
Just download the ISO of your Windows 10, create a bootable DVD/Flash Drive, boot from it, and install! If you already had a Digital License, and not used KMS, it would even automatically activated after the install finished! Just do a Clean Install!!