|Glad to hear things are better.|
MalwareBytes is worth keeping onboard but best to update any program of this
type about once a week.
There are no end of security programs you can use but there's a limit to how many
you want to have "just in case". Since you asked though, SuperAntiSpyware free
is another good one to have around and, like MalwareBytes, only runs on demand.
What full AntiVirus program is best is in the realms of personal opinion. Many folk
seem to do just nicely with the free version of Avast. You just have to re-register annually that's all. AVG have a free version but IMO it's a bit bulky and pushy.
Microsoft Security Essentials is OK (and free) but seen by many as a bit minimal.
Some people feel more comfortable with a paid-for antivirus. Norton is popular
with many, and apparently is no longer the big bad wolf that it used to be. Hard to
say whether Avast Pro is better than Norton or worse (i never pay for AV's LOL).
Worth reading the reviews.
If AVG is only a trial and you want to get rid of it in order to use something else,
free or otherwise, then follow these tips:
1. If you can find out how, disable AVG before you attempt uninstall.
2. If you have any difficulty with the uninstall go to AVG's website then download
and run their "AVG remover".
The above tips apply generally to uninstalling any antivirus.