Is your System Running Slow?? then Try this......

1.  Click on Start button.
2.  Now click on Run.

3.  Then type this command :

msconfig

4.  Click on OK button in Run Dialog box.


5.  A window will pop up (System Configuration Utility).

6.  Click on "Startup" tab.
 

You will see all programs that run when your device starts up each time.
 Just look at "Command" section, any programs that begin by "C:\Program Files\...".just uncheck. (Click on checked checkbox) them.

Important : Don't uncheck items that start by (C:\WINDOWS\). 

Disable any unknown program , Leave the antivirus checkbox because it is helpful when  the system starting .

7.  Click on OK button.

8.  You will be asked to restart you computer or not, It is recommended to Restart now