Why does a PC becomes slow?

Answer 1

Why my PC running slow?

My PC:

Intel i7 920

DDR2 6g Ram

Nvidia GTX295

V10 Cooler Master

Corsair 650w Power Supply

500GB WD Hard Disk Sata

Someone explain for me?

Thank You...

Answer 2

Many modern operating systems, including Windows, utilize a technology called "Virtual Memory". When data in RAM has not been accessed recently, the computer pages the data out of RAM and into Virtual Memory. The less physical memory that is available, the more often this process becomes necessary. Virtual Memory page files are stored on the hard drive. Since the seek time and the data transfer rate of hard drives is orders of magnitude slower than RAM access, the more that has to be swapped into virtual memory, the more it will slow down your PC. Therefore, simply adding more memory to your PC wil result in less paging into virtual memory, thus speeding up your entire system.

Answer 3

Usually PC becomes slow in some cases:

• system was infected by virus
• HDD has errors
• HDD is defragmented
• there are too many applications installed