No cause information.
The computers listed below, if upgraded to the Windows 10 32-bit version will not have an active touchpad after the upgrade due to a computer limitation.
You have to attach a USB mouse to the computer to be able to roll back the upgrade to the original Windows version.
| Model |
|---|
| Inspiron 14 3442 |
| Inspiron 15 3542 |
| Inspiron 17 5748 |
| Vostro 3446 |
| Vostro 3546 |
| XPS 13 9333 |
This functional limitation is only associated with the 32-bit version of Windows 10.
You can reimage the computer with 64-bit versions of Windows 7 SP1 or Windows 8.1 then upgrade to Windows 10 64-bit.