Analysis of the cause of the problem caused by the card screen in Windows 7

The first reason is that there are too many junk files in the system.

In addition to Linux kernel systems, as long as windows systems are used for a long time, the system is getting longer and longer. What should we do at this time? It must be cleared.
You can use 360 to clear the cache in the system.

Case 2: hard disk and hardware aging

Hard disk is a very important hardware facility for Windows 7 flagship edition computers. If you pull the hard disk or the hardware cannot keep up with it, it will be slow, so you can change your computer to a new one.

Case 3: Virus

No matter how powerful your computer is, it must be very slow to be poisoned. If it is slow, if it is caused by poisoning, we will simply install an anti-virus software to solve the problem, you have used 360 anti-virus or 360 security guard.