For the last month and a half I've been getting error 0x800703f1 while trying to update Windows 10 Pro x64 (KB3105210, KB3087040, KB3106932 and the new Treshold 2 to be exact). Manual installation failed at Step 2. I tried EVERYTHING. From SFC to DISM, from Deleting stuff in SoftwareDistribution to using Windows Update troubleshooter. NOTHING helped. Is there any way to fix this without having to reinstall my entire OS because I have some valuable information on my PC which I DON'T want to lose. I really would appreciate if someone would help me out here :)