Hello All,
I would like some advice on what to do here with my laptop - I've had it for 5 years now, contemplated on getting a new laptop but other Acer users have recommended I should just "upgrade the laptop".
The reason I have contemplated is that every time I use the laptop - it is running slow, it is reporting a 100% Disc (C:) and the memory is coming up with 841MB which is not enough to do anything really - see below.

I know the screenshot above shows a DISC of 16% but it is normally operating at 100% when I use the laptop. I have tried some remedies such as resetting my laptop (it helped a bit, but not enough). I've carried AV checks and just think the only best option for me now is to upgrade my RAM.
I bought the laptop initially for University work but now plan to mix it up a bit, want to include a bit of gaming and some internet browsing - my ideal laptop sounds 8GB RAM but mine is 4GB.
The question now I have for you all is -- can I upgrade the RAM for my laptop? And how do I know the maximum RAM I can add onto my laptop? And can I buy the RAM direct from ACER?
See below for some specification information on my laptop:
ACER ASPIRE ES 15 ES1-523-456CAMD QUAD-CORE PROCESSOR A4-7210AMD RADEON R3 GRAPHICSQUAD CORE4GB DDR3 L MEMORY (RAM)1000GB HDD
Any help will be greatly appreciated - many thanks
Junel