Hello Kathleen,
Try Re-enabling your mouse
Windows may have disabled your mouse during the upgrade This will make your mouse unusable and your mouse cursor disappear.
- You should try pressing the key combination on your laptop keyboard that can turn on/off your mouse. Usually, it is the Fn key plus F3, F5, F9 or F11 (it depends on the make of your laptop, and you may need to consult your laptop manual to find it out).
- You can also enable your mouse in the mouse settings.
Press the Win key on your keyboard, then type “mouse“. When you see “Mouse settings“ appear in the menu above, press the up or down arrow on your keyboard to highlight it, then press Enter.
In Mouse settings, press Tab on your keyboard until Additional mouse options (under Related Settings) is highlighted. Press Enter on your keyboard to select it.
In the Mouse Properties window, press Tab on your keyboard until the Buttons tab in the window is highlighted (with a dotted border.)
Press right arrow key on your keyboard until Device Settings in the window is opened. (The name of this tab could be different, depending on the mouse you use.)
If your device is disabled, press Tab on your keyboard until the Enable button is high lighted, and press Enter to enable the device.
If this method solves the problem, you will be able to see your mouse pointer again.
Update your mouse driver:
https://support.microsoft.com/en-us/help/402844...
Hope it helps, have a good day