You need to enable UAC & Smartscreen.
You also need to consider some type of system & data backup solution.
Avast? Internet Security?
After the important things are taken care of consider an on demand scanner(s).
Your real tine protection is not an on demand scanner.
Consider adding HTTPS Everywhere & Privacy Badger to chrome.
CCleaner for a system utility.
Thanks for sharing your config
Thank's for sharing starter.
Oh yes, turn UAC on ! It's mandatory to know the elevation requests I think.
For Smartscreen, I recommend to turn it "'on" too. With win8, I disabled it, because it was working with MS browsers only, but now that smartcreen is machine wide, I prefer to turn it on.
I've realised that after reading some MalwareTips posts !
Really risky configuration, UAC and Smartscreen should be enabled, and a serious backup plan is a 'must to have'.
Avast is a good solution, but it is advisable to have a second security level, using for example Zemana AM free or paid.
If you do what the others have suggested then you would be safe,but I would like to suggest one or two on demand scanners:Malwarebytes,Zemana or Hitman Pro