Windows 10: Installation of updates on Windows 10 Home, and installing Windows 10 Pro.

I have windows 10 home installed on my PC. It has failed to update numerous times in the past year, which only recently came to my attention. I purchased Windows 10 Pro and downloaded it, but when I go to install it, using the .exe, I get error code 0xc000409, or code 0x8024034. The computer takes a long time to load everything, and then finally fails. I have had four phone calls with Microsoft with no solutions. I can't download new programs or updates on some of my programs because of this. I need to fix this problem. Any ideas?

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Clean Windows 10 (?PRO?) install

I have bought a legit "Windows 10 Pro" key of a key website. It is legit since i'm currently using it for over a year now. I currently have Windows 10 Pro installed on my PC and I want to do a clean install. I just can't find the windows 10 Pro download in the tool. But if i could use a windows 10 pro key with a normal windows 10 install, I'll be good to go.

 

Clean Windows 10 (?PRO?) install

As far as I am aware there is no Windows 10 Pro version.
But I'd be happy to be wrong.

 

Installing Windows 10 on New PC?

I'm going to be building a new PC on Christmas and want to install Windows 10 on it. I have Windows 10 on my current PC, which I installed upgrading from 8.1 with the files on a USB. How do I go about installing a clean copy of Windows 10 on this new PC? I think I recall something about installing it once makes Microsoft recognize your hardware, but since this will be a PC I'm not sure what steps I need to take. Do I need to go 8.1 -> 10 or is there a method of going directly to 10?