when i try tu update windows from 8 to 8.1 i get this eror messege i try to reset the windows store and it didnt help 

im tring thes almost ayear so thenk for anywhan who can help me

Solved here

http://superuser.com/questions/666147/why-do-i-get-error-0x80070004-when-trying-to-update-to-windows-8-1-from-windows

http://microsoftlivesupport.com/blog/post/windows-update-error-code-0x80070004/

and perhas this

https://support.microsoft.com/en-us/kb/2876597

M.