Metro apps and store not working and grayed out - advanced

A bit of background info: I have installed Windows 10 about 5 times.
The first 4 it would only work until the first reboot because during the setup phase it would automatically install a faulty driver and on the first available restart my Windows would break and I would have to reinstall to get the laptop working again. However all metro apps worked fine before the first reboot.
The 5th time I switched my internet off and window 10 setup finished without internet. That means the faulty driver didn't automatically get installed so I had a chance to switch off the automatic driver installation. However it also meant Windows 10 didn't get activated during the setup phase. I switched internet on, activated Windows 10. Now my computer works fine but all Metro apps are greyed out and not working. For some of them the application crashes and others give me the error "This app can't open"
I tried all obvious solutions

1. sfc /scannow and the DISM command
2. Reinstalling them using: Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
3. Reinstalling them using Powershell
4. Starting the Application Identity and App Readiness Services

and a couple of other random suggestions I saw online. For me nothing has worked.
I tried digging deeper and looking at the event logs the error message when trying to open the store is:

Activation of application Microsoft.Getstarted_8wekyb3d8bbwe!App failed with error:
The application cannot be started. Try reinstalling the application to fix the problem.
See the Microsoft-Windows-TWinUI/Operational log for additional information.

Looking at the Microsoft-Windows-TWinUI/Operational log:

Activation of the app Microsoft.WindowsStore_8wekyb3d8bbwe!App
for the Windows.Launch contract was blocked with error 0x80073CFC
because its package is in state: 66.

So I suspect my apps where working fine before because Windows activated during the setup phase and now there is a problem because Windows activated after the setup phase so the Metro apps are stuck in some sort of non activated limbo.

I have Home edition. I suspect if I had access to the Group Policy Management Editor menu I could perhaps fix the problem but I don't and so I need a solution to fix the activation errors. Maybe some registry keys or some other fix is available. Re-installing Windows is not an option because I would have to redo it the same way which will lead to the same problem.
Any ideas?

Cliff S said:

Have you already checked that your time zone setting is correct and tried syncing time with either .nist.gov or Microsoft? Also check that all Location settings are turned on EXCEPT Mail & Calendar.

Yes both are correct.

I have tried all obvious suggestions with people with similar problems. I believe mine is a licencing issue because my Windows were not activated during the set up phase (I had the internet switched off).
But it's not easy to fix these issues with Home edition. I tried re-installing the apps without success. Reinstalling windows is not an option.
Any licensing Guru knows a way to fix this? I'm guessing I need to edit values in the registry or something like that?