I have a problem with the clock of my Windows: often, during the day, it goes ahead ot 2 hours. E.g., if it's 8:40 AM, the Windows clock goes to 10:40 AM, while the Mac clock remains at 8:40 AM. After a few seconds, the Windows clock returns to the correct time (8:40). I'm in the Rome timezone, UTC+2, so maybe the 2 hours shift is related to this. This happens several times during the day (every 1-2 hours) and it's quite frustrating because a couple of software that I use have some issues due to this. I already have the setting "Sync from MacOS X" in the Parallels options, as explained in this article: http://kb.parallels.com/en/113271 I've already tried several networking settings (only shared network, only Wifi/ethernet), but nothing changed. Actually, also in the previous MacBook that I had up to some months ago, I had the same problem. I have all the software updated to the last version (Windows 10, MacOS X, Parallels Desktop). Do you what could cause this problem and if there is a solution?