Major causes of a PC running slow

There are many factors and cause that can make your computer/pc run slow. Some of the important are as follows:

1. Hardware related issues or any hardware fault can cause your PC slow. If you are experiencing any hardware issue before trying anything else you must ensure if all the attached hardware components are in working state and there isn’t any hardware fault at all. So if you really want to speed up your computer hardware system should be intact and fine. 
2. Verify your installed Ram and if it capable enough to run all your application programs and your OS as well. RAM is the most essential requirement for your computer system and it must be sufficient enough always otherwise it is inevitable to face slow PC issue.
3. Virus free system- Virus, spyware and many other malware are also the major causes of slow performance of your system. In order to speed up your computer your system must be free from any kind of infection.
4. Clean Windows registry- registry is the central database for your windows machine.  It stores all the settings, options and user profiles in the registry. The registry gets accessed almost every process of your machine. Due to various reasons it gets corrupt and fragmented. In many cases the corrupt windows registry create issues such as slow performance problem. You may also use a reliable registry fix to clean and repair your corrupt registry.
5. Corrupt device driver- Device drivers if not installed properly, or corrupt, or incompatible can cause many issues in your computer including slow PC, poor performance, blue screen of death and many more. If it is the case with your system we recommend uninstalling and reinstalling the fresh set of compatible drivers. No PC cleaner software can fix if your drivers are corrupt.
6.  Reduce windows services and visual effects- If you think none of the aforementioned points are affecting your computer system and still you are experiencing the slow PC issue, you can reduce the fancy items or features of your machine and can speed up your PC to an extent.
7. You may also uncheck all the startup items for speeding up your slow startup and slow PC issue. There are many such services and process that are not required all the time by your computer but they keep running on in the background. Thus they must be stopped to speed up yourPC.