I bought a MacBook Pro in 2012 and it has seen a series of upgrades. It came with 10.9 and since then has been upgraded to 10.11.2. A few days ago I started to see screen corruption where parts of the background or “desktop” would increasingly get more distorted the more I used it. Since there is not an easy way to change the display “driver” like you would do in Windows I had to think how to fix this problem.
I could of course have thrown away preference files, spent time googling it, and really got down to the nitty-gritty. I also had another option. I could just reinstall the computer. Microsoft says that as a best practice a Windows computer should be reinstalled every year from a clean state. Meaning totally format the drive and reinstall everything. Almost no one does that. Some business come close in not allowing their users to save changes to their computer, but it’s not the same.
I decided to reinstall my computer to fix this problem. I had tried lots of software since I help customers with things, and in general it had gotten unusually slow on the internet. After I formatted the drive and reinstalled from scratch, it has gone back to its usual snappy and fast Mac self. The screen corruption is gone, and the battery life is even longer.
The point of me writing this, is to say that if a computer Mac/Windows has not been reinstalled in 2 or more years and you are having weird problems, its best to just reinstall everything. Yes it does require a computer person, or taking some time to learn how to do it, but it is the best use of your time. In addition to fixing the main issue, it often fixes other issues you don’t know about. Malware/Virus and other junk also frequently are on computers and many popular protection programs do not protect the computer enough. By getting rid of the bad junk on your computer, you are also helping those friends and family that you share files and information with. Many times many surprising issues are fixed by re-installation.