Should you use non admin account for daily browsing even if you're the only user of the computer?
Solution 1:
When you are logged in from an administrator account and UAC is enabled, most of the programs are executed with the permission of a standard user. The degree of protection varies according to the UAC level that you choose.
The UAC prompt is not an absolute protection, as hackers are pretty good about convincing you to press "Yes". Meaning that the protection is only as good as your vigilance and attention.
As standard account, no one can trick you into running a program with elevation. In addition, many hacks that use vulnerabilities to elevate a program won't work when the current user is on a standard account.
In short, if you are not an experienced Windows user, working under a standard account is safer.