Most people who use computers are familiar with the fact that sometimes they just do not work like they are supposedly to. They get slow, they get viruses, they give you error messages. A lot of times people just have no clue how to deal with these issues. However, the good news is that there are some solutions that most people can employ to get their computers functioning again.
One of the most annoying computer problems is slow speeds. Whether it's slow to boot up, or just slow to load programs, it can be hard to pinpoint what the problem is. The first step is to see if there are any programs running in the background hogging CPU. Press Ctrl + Alt + Del and pull up the task manager. Look on the Processes tab and see if there are any programs hogging CPU. You can see this more easily by pressing on CPU to see which are at the top of the list. You can also press on Memory to see if any applications are hogging memory. If you see anything unusual, you might want to see what that is. Sometimes people unknowingly get adware or malware on their computers and these run in the background, hogging resources. Other times it could just be a poorly coded program that always runs in the background without your knowledge.
Another thing that you can do is to prevent lots of programs from loading at startup. Click Start, then in the search box type "msconfig". Then click the Startup tab. Remove any programs that are not necessary. If you're not sure about a program, leave it for now. Sometimes you can get rid of certain programs such as printer software (these can sometimes really hog system resources unnecessarily). For example, I had a program called the "Ask Toolbar" recently installed on my computer without my knowledge. It was loading at system startup. These are the types of things that can build up and cause your computer to slow down.
Other times your computer will just get slow because it has a buildup of files. Sometimes on computers with smaller hard drives you will not even notice but your hard disk has suddenly become full. This can tax your system, especially if it does not have a lot of physical RAM. This is because Windows creates virtual memory on your hard drive. If the hard drive is full, it does not have room for the virtual memory. In this case, using a program to clean out junk files such as CCleaner or RegCure Pro can really help you out.