Live tiles not working anymore

Hello,

I have the problem since a few weeks (mostly after a tile update), and I'm not the only one, my friend has it too on both his laptop and desktop, that the live tiles, or actually some of them, for example weather, are not refreshing anymore. It just shows the blue weather tile. When I open it, it works though, news the same. Any idea on how to fix this? Also I tried to deinstall and reinstall the weather app, but now it doesnt even show the "use live tile" button anymore (look at picture).

I like to start with simple things that might work: system restore especially if you know about when your problem began and sfc /scannow (may need to run multiple times--say 3).

No luck with those attempts. Try creating a new user account of the same type with which you typically login. Copy everything you will need to the new account (from C: > Users > Old User Account) if the new account works. Then, delete the old account. You can go back to the original user name similarly. Before you do so, make sure that deleting the original user account also deleted that users folder in C: > Users. Sometimes this folder does not get deleted. If not, then going back to the original user name creates a minor only superficial "problem." To delete the folder, you may have to take ownership. I would not go back the original user name using any other procedure.

download.microsoft.com/download/F/2/2/F22D5FDB-59CD-4275-8C95-1BE17BF70B21/AppsDiagnostic.diagcab
^^ Trouble shooter for tiles.

C:\Windows\System32\WSReset.exe ..clears store cache and resets things there.

DISM /Online /Cleanup-Image /RestoreHealth ...from elevated prompt.. takes a while. slow scan maybe 40 min here.
Fixing component store corruption in Windows 8 and Windows Server 2012 - The Windows Servicing Guy - Site Home - TechNet Blogs