Unfortunately Most of the features are unavailable on windows Home version in that case .: Open Start and search for cmd. Right click on the found program and click Run as administrator. Enter the command net stop “windows update” and you’re good to go. Likewise, you can suspend the process with PsSuspend and the command pssuspend wuauclt.
For users of Professional Windows, you can adjust a few things in your group policy settings or system registry:
Start à search for gpedit.msc. Navigate to Computer Configuration à Administrative Templates à Windows Components > Windows Update and enable “No auto-restart for scheduled Automatic Updates installations”.
U can also apply the same policy change by adding a new key to the registry. Go to Start Run/Search for regedit.
Navigate to HKEY_LOCAL_MACHINE SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU. Create a new 32-bit DWORD value named NoAutoRebootWithLoggedOnUsers and give it a value of 1