1. Antivirus is Your Best Friend
Antivirus software will go a long way toward helping cure and prevent problems with your computer, because most problems with your computer come from viruses. The good news here is that professional quality antivirus software is often free!
Don't spend unnecessary money on antivirus software - instead, look up software like Malwarebytes and Avast! Antivirus (don't forget the exclamation point in the name of Avast! Antivirus) to help keep your computer in tip-top shape.
2. Back Up Your Data
Do it every day. Do it now. We're not kidding - one of the most painful parts of computer issues is losing valuable personal information and projects that you've been working on for huge periods of time.
Pick up an external hard drive and make a backup to that, or check out online backup services - these can range from free to a monthly cost, like Google Drive and its expanded memory options. Whatever you end up using, get in the habit of backing up your data all the time, and work it into your daily work routine to prevent costly data recovery services.
3. Mechanical Parts Fail Eventually
And that's okay! Your computer is, in the end, made up of mechanical components, and those components will run into problems and break down eventually. Plan ahead for this by consistently backing up your data and calculating how much money you'd want to spend on new parts. Just like with a car, you need to do a cost-benefit analysis of putting more money into replacement parts for your computer when it just might be better to pick up an entirely new computer. Figure out how much you want to spend on your machine and plan accordingly!
Here's Some More Helpful Computer Repair Tips