Chart gave you some good advice if you want an awesome computer. If you just want one that will get you on the internet & be protected from viruses, you can do that for free.
AVG offers free virus-checking software that is compatible with your computer. You just need to have an internet connection (dial-up, DSL, cable, mobile, anything will work). Connect your computer to your internet the same way you connect on your current computer. This may require software. If it can't connect automatically, call your internet provider & ask for help. As soon as you are connected to the internet, first thing, go to AVG free.avg.com/us-en/homepage
. Follow the directions to download their virus checker & run the program immediately. It will check for viruses, tracking
cookies, worms, etc. and will quarantine anything dangerous or flag anything that isn't a danger to your PC but isn't really desirable either (like tracking
Delete anything it tells you is harmful to your PC. A pop-up box will tell you what that includes (if anything) and you will just need to select the button that says to either repair or delete the file(s). It's very easy to use.
Once you've run the virus checker & told it to fix any issues that are identified, restart your computer -- do that whether there is anything found or not just to be safe. Then you're good to go. If you want a faster computer, let me know and I can send you instructions on how to access free virtual memory. Also, you could try removing any programs that you don't need -- I can meet you in a chat if you want to discuss how to do that & what programs you need to keep vs. can delete.
After all that, if your PC is still too slow for your liking, you can upgrade your memory and/or motherboard. I wouldn't buy the best that money can buy unless you are a total computer geek. I develop websites & even I don't have the best that money can buy. ;) Certainly more memory & a faster processor help, but you'll only see those benefits if you are doing activities that require intensive graphics (digital video editing, for example) or concurrent use of multiple programs. If you just want websites to run faster, your best bet is to upgrade your web service (more bandwidth). Finding a 4G or 5G provider will make a huge difference. When I switched from ATT DSL to Clear 4G, I was suddenly able to view movies and TV shows online at the same speed as TV -- no frozen frames, no pauses, no garbled sound, etc. That will make more of a difference for you than just about
anything else. :)
You might already have a firewall. Windows XP and Windows Vista, for example, come with a built-in firewall. If you have Windows, go to the Start menu. Click on Control Menu. If there is a little brick icon that says "Firewall", click on it & see if it's On or Off. If it's off, you can turn it on.