This thread helps Fix Windows Update encountered an unknown error (ex, 80240037, 80243004, 8007000e, etc.)
Method 1: Browse Microsoft Update Catalog@ www.catalog.update.microsoft.com/Home.aspx and perform a manual installation of update(s) released for Windows 7, 8, or 8.1, regularly. More on Installing Windows Updates · Go to Microsoft Download Center@ www.microsoft.com/en-us/download and and then install manually. · try/use one of the below free software updater program: a. PC App Store