Immediately after installing 1803 update The SP4 just kept shutting down randomly every few minutes. Did a fresh install of 1803, same problem with nothing loaded. Just did an install from a Win10 Pro CD of original release 1507 and have had zero problems since. Unfortunately despite the fact I set "defer feature updates" to ON it's updating to 1703 which should not happen. Hopefully it won't do 1803. Also my battery will no longer charge (getting "plugged in not charging") but that is happening with all the O/S versions. Tried all the tricks to fix that with no luck. Guess the battery is dead.