|Is this a desktop computer, or a netbook or laptop computer ?|
What type of device is the cursor for ?
A corded mouse, or a wireless mouse, or the touchpad on your netbook or laptop ?
If it's a corded mouse, it's common for wires to get broken inside the mouse's cable - try a different mouse.
If it's a wireless mouse......
- the battery(ies) inside the mouse must have enough capacity
- the USB controllers must be enabled in the mboard's bios Setup.
- the mouse's wireless USB transceiver must be plugged into a USB port that it can work properly with - e.g. it should always work fine when it's plugged into a built into the mboard USB port.
- you may need to do something to activate the mouse - e.g. some require that you must press the left mouse button when you first start up the computer - merely moving the mouse will not activate it.
- if the wireless mouse was not connected to the computer previously, you will not be able to move the mouse cursor while booting and in Windows until after the desktop screen has fully loaded and Windows has installed the drivers for the wireless USB transceiver.
Use the Tab key to toggle which thing on the screen is selected while booting, the up and down cursor keys to select an item from a list, type in a password if you need to, press the Enter key, etc.
A short time after the desktop screen has fully loaded, the drivers for the wireless USB transceiver will be installed, and the mouse cursor will move normally in Windows and while loading Windows after that.