Open the Settings app on your watch. Tap on the top item, Time. Tap on the button in the middle of the screen. Turn the Digital Crown to adjust the time; tap Set when done.
Windows Vista does not have sufficient protection on it's own. Avast is legit, and it runs on the background, because it's protecting your system all the time. Run an updated full scan with: Malwarebytes and Spybot Search & Destroy Therafter check through with your anti virus, just to ensure it still works.
Publisher's Description. From AVAST Software: Protect your Android phone and tablet with a free mobile security app with both antivirus and anti-theft. * avast! Mobile Security keeps your device safe from viruses, malware, and spyware.