It's not normal to see those messages on a Win 7 computer. In the past, XP computers have sometimes issued those messages if a specific Windows Update was needed.
Is there anything special about your (user) folder at C:\Users\(user): specifically with your (user) logon name?
Win 10 Home 64-bit - Zone Alarm Pro Firewall, Malwarebytes Premium A/V, Cyberfox, Thunderbird
Sandboxie user since March 2007