If your PC is running low on free space, you might not be able to install important Windows updates, and your PC’s performance may be affected. Here are some ways to free up space so you can keep your PC up to date and running smoothly. These suggestions are listed in order, so start with the first one, see if that helps, and then continue to the next one if it doesn't.
To check the total disk space left on your Windows 10 device, select File Explorer from the taskbar, and then select This PC on the left. The available space on your drive will appear under Devices and drives.
If you follow the steps below and continue to have trouble updating Windows because of low disk space, resetting or reinstalling Windows might help. For more info, see Reinstall Windows 10.
The following questions concern low disk space and Windows Update specifically. Learn more about Windows Update.