If you have a slow computer, you can do some of these things to quicken up your computer, just like a computer repair business.

Sometimes a computer repair shop will go to extreme points to get the maximum speed out of a computer, check out these methods below.

 
Overclocking the CPU and graphics chip are a hasty way to get more out of your system.Most CPU's are set lower than the speed they can actualy work at because it is cheaper to manufacture one chip and sell it at umpteen speeds than to actually make various speed chips. Commonly on a computer you can change the front side bus or CPU multiplier factor in the BIOS setup.  This can be accessed by pressing F1 or DEL during boot.  
 
Prior to changing the clock settings on your computer you should make sure you have a properly operating CPU fan in your system since overheating can damage the C.P.U..  
 
If you set the CAS setting in the system BIOS you can acquire some system speed with the RAM.  By getting this number lower you are speeding up the memory in your system.
 
A quick computer repair technique that will benefit you some system speed is to modify the drive your swap file rests on.  This will hasten your system up because it will permit your operating system be accessed separately from the virtual memory.  The virtual memory file is where information is stored when your computer RAM has been filled up. One drawback to virtual memory is that accessing information on your hard disk is much slower than utilizing data stored in physical RAM. A PC that gets at the swap file for information may have hefty decreases in performance.  Computer repair will be then essential to add physical memory to the system.