That's your biggest (tightest) bottleneck. 2GB is barely enough room for Windows itself to operate freely in. Then you even lose some of that 2GB because you are running integrated graphics so a chunk of system RAM is stolen... err... is being "shared" for graphics processing. Add security programs and you eat up another large chunk of RAM. That leaves very little for any applications to run in - let alone two resource hungry programs.
With so little RAM, your system if being forced to bang on the page file on the slow hard drive much more often. If your hard drive is running low on free disk space and/or heavily fragmented, that will further hamper, or even greatly restrict the page file's performance, adversely affecting the computer's over all performance.
XP is another issue. While a great OS in its day, its day is long gone. Besides security issues (which I'll get back to in a minute), XP does not manage system resources as well as modern operating systems do.
I heard Win XP Pro uses max 3.3 GB RAM, but I still wonder if it would help or improve the overall PC performance a bit?
What do you guys think?
To be honest, I don't really know if my Laptop supports more than 2 GB RAM, is there a way for me to check this?
It is not the fact it is XP Pro that limits the RAM use to ~3.2GB. It is because it is 32-bit XP. You can visit most any RAM maker's website and run or enter your computer specs into their RAM "wizard" to see what your notebook supports. I recommend checking out the Crucial
Memory Advisor. You don't have to buy their RAM but you should look for RAM with the same specs. However, if you buy directly from Crucial, they guarantee compatibility.
Having said all that, I would urge you heed Confounded Also's advice and look to buying a new notebook that supports a modern and secure OS. As I am sure you are aware, XP is no longer supported by Microsoft or by many security programs either. The problem is not
that you are putting yourself at risk. The problem is if this notebook connects to a network with Internet access, you become a threat to the rest of us!
And that is just not cool, or being a responsible netizen. :(
Bad guys are actively seeking out and targeting XP systems to compromise and infect. They then use those systems to distribute malware and spam, and/or to draft into their bot-armies as zombies in DDoS attacks on others - all without the user being aware their computer has been infected.
As noted, refurbished or off-lease systems with modern operating systems can be had for a song. Check out Walmart refurbished computers
If replacing this computer is still not in the budget, I would urge you to install and use Linux instead. At the very least, disconnect this computer from Internet access and use it as a stand-alone system.
I fully understand that nobody wants to get rid of perfectly running electronics. But it is just a fact of life. Surely you have retired old cell phones, old TVs, cassette players, VCRs, and more that still worked because of technology advances. This is no different - well it is different because using XP threatens the security of not only yourself, but others too. :(
Bottom line, XP needs to go away!