Computer Errors In Computer

What are PC errors?
There are different types of errors of computer. It has been seen that when any of the issues come up in the computer, it becomes very slow and start giving me different types of errors. The errors related to PC is very problematic and if not those are handled on time, can bring you various fatal disorders. In my computer too, I had to face different types of errors. I have been using a Lenovo laptop and in my computer I have faced various file not found and application not opening errors each time.
So, a continuous try to fix my PC was on. At the very first, that is from the second month of the new computer, I found that the gradual speed of it was decreasing. Not only this, but also I found that there were start up problems in the laptop and I was unable to work with every single application.
If you want to know about my sufferings, I have to tell you from the beginning. I faced different types of errors in the computer and

The occasional cleaning was not done in my computer and I was facing the slow speed issue. I had an antivirus loaded in it, but there was no idea that a proper cleaning to clear out the space is needed in the PC. So, I did one thing after I found that my computer was not performing properly.
My friends told me that there are online free tools that can speed up the PC which is also known as optimizer, can be used in the laptop. I therefore, downloaded a free tool from online store to fix my PC. Initially, it was all fine. But, at some days passed by, I found new problem aroused in the computer. The first thing that I noticed that some of the applications, especially games were not responding. After that I found that none of the Word files were opening in the system as well. The Office 2016 and Office 365 errors can come up in the machine at any time and if any such errors show you that the word files cannot be used in the system and the whole machine is getting into a mess