This post helps Fix error code 0x800703f1 while trying to install updates on your Windows 10.
Step 1: Check info re your Windows Version. Press Windows Key + R. Type winver in the Run window. And press Enter. Cross check whether you have latest Version & OS Build. Step 2: Update your Windows manually. Pay a visit to the below page@ www.microsoft.com/en-us/software-download/windows10, and download and run the media creation tool.