From what you've said, you might just need to disable the notifications (from AVG?). If your computer is running well apart from the notifications, you can disregard them.
BTW Memory and storage are two different things. The hard drive is for storage, and that's where your files and programs are kept. Memory, or RAM, is in use while you're doing things on the computer.
The RAM more you have, the more you can multi-task ? it's like your PC's headspace.
If you do want to upgrade RAM, it's an incredibly quick and easy job. You don't have to be a techie!
You need a small Philips screwdriver ? if you buy your RAM from Crucial, they do a good one.
Second, find a manual or google to check where your RAM slot is. But if you flip your laptop over it's usually pretty clear which bits will unscrew. There might be letters or a diagram over the RAM slot.
When you have located it, and you've got your RAM, do this:
- Unplug your laptop
- Take the battery out!
- Ground yourself by touching a radiator, or wear an anti-static wrist band
- Unscrew the RAM cover. Put the screws in a dish or something so you don't lose them
- Remove old RAM ? there are clips holding it there
- Clip new RAM into place
- Replace RAM cover
- Let your PC detect the new memory when you next switch it on
That really is it.
Here's a video to help out ? it's old, but still stands. Changing RAM takes less time than playing the video.
www.computeractive.co.uk/ca/pc-help/1913224/upgrading-memory-notebook