Windows Update is a system application that, on Windows 10, automatically installs firmware/software updates. If Windows Update doesn't appear to be making any progress while downloading updates, follow these steps.
Steps
Restart Windows 10
Click the Start button, then click Power, after, click Restart.
Log into an administrator’s account.
Open Windows Services
Click the Start button, type services.msc, then press ↵ Enter after it finishes searching.
Stop the Background Intelligent Transfer Service service.
Find Background Intelligent Transfer Service, right click it, then click Stop.
Stop the Windows Update service.
Find Windows Update, right click it, then click Stop.
Open the Run dialog.
Press ⊞ Win+R.
Type %windir%SoftwareDistribution and click OK.
Delete everything
Press Ctrl+A to select all of the files in the folder, then press ⇧ Shift+Delete and click Yes to permanently delete the files.
Restart services previously stopped.
In the Services.msc window, right click Background Intelligent Transfer Service and click Start, then right click Windows Update and click Start.
Download the updates again.
Open Windows Update then check for updates.