PC really get full with unwanted stuff over time. I used to install new windows every year because my PC would not run anything properly. I was trying stuff like Ccleaner, but it would make the situation better for only few days. I researched more about PC optimization and I was able to find a solution on https://thinkmobiles.com/blog/best-pc-optimization-software. They are showing the list of the best PC optimizers and it is the stuff that really works. I used Wise Care 365 and It really cleaned my PC. After using it my PC is much faster and better to use.