Double your computer CPU speed for free//make your computer gaming machine//
For a list of commands on this video see below:
Command Mentioned in Step 4 :

1 %temp%

2 temp

3 prefetch

Command Mentioned in Step 6 :

1 MSConfig

Command Mentioned in Step 7 :

1 Regedit

All computer speeds improvement steps in this video are as follows:

1-power options .change to high performance
2-from tasks manager stop unwanted programs
3-defragment and optimize drive from start /search defragment/ optimize
4-delete unnecessary temporary files
5-cleanup memory
6-reduce run time services
7-registry tweaks
8-visual effects