Windows 10 has been recently launched and many users have started using this Operating system. Here the update procedure is very easy as it is updated automatically. Along with the positive aspects it has the negative side as well; when the user tries to download the Windows 10 KB3087040 update then there are chances that the user may get an error 0x80004005. Generally while performing this update it destroys the security vulnerability that is present in Flash player of the internet explorer. The users are unable to download as it fails during the update process. You may get the following error messages on the screen: