New submitter sexconker writes: The recently-released cumulative update for Windows 10 (KB3140743) is reportedly causing problems. Symptoms include crashes, BSODs, and the inability to boot, even in safe mode. The Windows 10 subreddit has many threads detailing the inability to boot. The only fix seems to be booting to a recovery ISO, uninstalling the update / rolling back, and hoping you don't get hit again. W10Privacy 2 claims to be able to (among other things) give Windows 10 users control over the automatic updates.