Check your operating system's mouse pointer settings
in Control Panel and try lowering the speed under the Pointer Options tab. When set too fast, the mouse may jump all over the desktop at the slightet touch.
If you have a wireless mouse, low batteries
can result in weak, mixed or no signals that can affect its functionality so start by replacing them. If you are using a ball mouse, remove it and clean the rollers as dirt and gunk will cause erratic
behavior. If its an opitcal mouse, "jumpiness
" and "jerky
" movements can result if using it on a glossy surface or reflective mouse pad. In some cases using multiple or uneven mouse pads can produce the same results. As a test, try placing it on a piece of newspaper or rubberized pad to see if that resolves the problem.
If that does not help, confirm that the mouse works on another machine. It is possible the mouse could be defective or has gone bad. Another thing to try is to use a different mouse or a PS2 adapter
if its a USB mouse.
If none of the above resolve the problem, then as elise025 says, the logs from ComboFix will need to be reviewed if they are available and we can move this topic.