Well, for cold boot, I mean that I shutdown my laptop completely and then start it again, but yes, fast startup is enabled there. Yes, I know that with Fast startup enabled, the OS does not really shutdown since Windows 8. This problem did not happen with me since build 10130 and after an upgrade to build 10240, it occurred. Restart takes almost 5 - 6 mins to finish and I don't think it's normal if I disable Fast startup on a normal OS. I tried to diagnose boot process and get the log above, then I realize that SMSSInit takes too much time to done because 2 entries that I don't know what they are. Tried this command too: xbootmgr -trace boot -prepSystem -verboseReadyBootThe process is completed but nothing changed.