Windows update not working, nor does windows upgrade. Win 7 x64

Hi all,

Windows update isn't working, preventing me from using certain programs that require the latest updated versions.

I've tried:

https://www.microsoft.com/en-us/download/confirmation.aspx?id=20858

I've tried using CMD to stop the Windows update agent and BITS, and deleting the software distribution contents.

Now it doesn't even show I have any updates needed.

I left the computer overnight "downloading and installing W10" but it got stuck on the "Checking for updates" step.

Any ideas? I really need the computer to be working but don't know what else to do.

Thanks!

edit:

it gets stuck on downloading at 0.0%