If you have the habit of it plumber each application or soft that you heard from the friend of your sister's friend or from the friend of your friend's brother (combinations of two by two are also accepted), then don't be surprised if PC-yours ended up moving like an ancient grinder between the knives of which a few grains remained stuck (I never lacked imagination). And that's because most applications install one "official" in each System Startup, thus decreasing Boot speed of the system (directly proportional to the respective no OPERATION :P).
To convince COMPUTER from the endowment to move with more talent, we recommend that you select from the pile of tested applications only those you need and, above all, do a general cleaning (at least once every two months) in Startup.
To select which programs to run and which not to run in Startup, select Run FROM Start Menu If you taste msconfig Then give Enter.

In tab-ul Startup uncheck all processes which you consider extra (by default all are checked).

Apply, OK and then restart to help the system register the changes.

After the restart, you will notice that the boot speed of your system will be much higher than before the "cleaning".