Are u worried that ur system runs very slow at some times?

u are also sure that ur antivirus is updated and the system is fully scanned , the system configuration is good enough but the system runs slow.This may be due to the fact that system runs a system maintenance utility which is actually set as a default to run periodically which usually uses most of the % of the disk. No doubt that it may slow ur system to some extent when it runs , but helps ur system to run in efficient way after the maintenance is complete. The main work of system maintenance utility is De fragmentation (When u delete /move some files in hard disks usually some of the space of the deleted location is left unused and De fragmentation combines all these unused spaces which in turn increases access speed by rearranging files stored on a disk to occupy contiguous storage ................