⇒ Troubleshoot your computer and run hardware diagnostics 

⇒ Fix operating system issues that causes PC crashes, blue screen, lockups, and slowness  

⇒ Remove all viruses, spyware, adware, malware, and all unwanted programs

⇒ Perform physical cleaning as dirt and dust causes strange noises and vibration

⇒ Re-install any Windows Operating System 

⇒ Download and install all critical Windows updates

⇒ Re-install all the pre-loaded software that came originally with the system

⇒ Download and install all drivers

⇒ Re-install printers, scanners, and other peripherals

⇒ Data backup or recovery