New
#11
I don't know why you're having problems with checking for updates - I have Windows 10 downloaded and waiting for install on this machine, and I have no problems with either checking for updates, or installing such updates as I want.
My settings are to download Microsoft Updates but let me choose when to install them.
There should be an option to 'see all available updates' just under the offer of Windows 10 on the Windows Update page? - Are you not seeing that?