Chosen Solution

computer is hang and any app time taking to open its is very slow and operating system is also slow

Well Junk files also can be one of the reason of slow PC. So I will suggest you to clean or remove the junk unwanted files from the system. Well the process of removing the junk files file from the system manually is not an easy or simple process so for that I will suggest to use a good PC cleaner software like Advanced System Optimizer or ccleaner are two good option to clean your system junk file.

How To Fix a Slow Computer Identify programs that slow down your computer. Check your web browser and internet connection. Defragment your hard disk drive. Identify hardware that can slow down your computer. Upgrade your storage with a solid state drive. Add more memory (RAM) Regards, Will