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.
Avast Antivirus comes with several tools and features: Antivirus: provides a range of scans and Shields to protect your PC from malware. Firewall (Avast Premier and Avast Internet Security only): monitors all communication between your PC and outside networks and blocks unauthorized communication.