Cleaning your computer should actually be one of the simplest thing to do. In the current Global warmed environment. Dust has risen, heat among others has increased making it so important to clean your computer regularly.
For the Laptop computers, A simple hand blower, Duster (cloth) can suffice but when it gets to the desktops.
However for the Desktop computers, we may need a little bit more. An electric blower, anti-static band repair table
So to Clean you Computer
Clean your repair table. check for Power connection. Disconnect the connected peripherals and devices. Set your computer on the table. Hold the fans to stop them from Spinning as you blow. This preserves the fans. When the mortar spins under blower pressure it generates a form of energy which actually spoils it in the long run.
The gallery above shows the Computer before and after cleaning. Below is Moses Cursor Ssebunya during the cleaning process