As a part time job I fix computers and laptops, The most common problem that people come to me with is Slow and unresponsive computers. This is a problem that is easily avoidable and fixable by someone with even the most basic computer knowledge. If your computer is Slow and unresponsive or if you just want to maintain its speed, Follow these instructions.
1. Do not pay for antivirus programs, The amount of problems that I have solved with computers and laptops simply by removing McAfee or Norton have been unbelievable. They are also extremely resource hungry. Free antivirus programs such as Microsoft Security Essentials and avg are in my experience just as good if not better than anti virus programs that you pay for. The free ones usually take up less resources and thus improve the overall performance of your computer.
2. Use Malwarebytes every couple of weeks, This is bar none the best anti Malware program I have ever used. There never has been a virus or Malware program that I haven't been able to remove with this software. Perform a scan every couple of weeks to give yourself peace of mind.
3. Install ccleaner, cleaner is a great little tool that allows you to remove all those unnecessary temporary files, Fix registry files and manage your start up items.
4. Run a disk defrag, while you use your computer you move delete and add files to your hard drive. The files are stored all over your hard drive and eventually become very unorganized a disk defrag moves all your files so that they are closer together and thus easier found when you are searching for them and respond quicker when you are trying to open them. The best disk defrag program I have used is Auslogics Disk Defrag
In conclusion, Install Microsoft security essentials or avg etc if you don't have one of the installed and run malwarebytes, ccleaner and a disk defrag program every couple of weeks to maintain your computers performance and responsiveness.