Genuine Windows 8 thiyena lapaka 8.1 ekata store eken update karanna giyama menna me error eka enava. Google search kara 98% userlata me issue eka avillalu. Mekata visandumak diyallako 
http://answers.microsoft.com/en-us/windows/forum/windows8_1-windows_install/windows-81-update-error-code-0x80240031/8e316745-f073-42e7-9af5-50382078ca15?page=18&auth=1
http://answers.microsoft.com/en-us/windows/forum/windows8_1-windows_install/windows-81-update-error-code-0x80240031/8e316745-f073-42e7-9af5-50382078ca15?page=18&auth=1
