Windows Update is a free Microsoft service that’s used to provide updates like service packs and patches for the Windows operating system and other Microsoft software. … Patches and other security updates are routinely released through Windows Update on the second Tuesday of every month—it’s called Patch Tuesday.

What happens if I disable Windows Update service?

Option 3.

Users of Windows 10 Home edition are out of luck regarding this way of disabling Windows 10 updates. If you opt for this solution, security updates will still be installed automatically. For all other updates, you will be notified that they are available and can install them at your convenience.

Should Windows Update service be running all the time?

It is likely that your computer will become vulnerable to attacks — especially if it is connected to an external network like the Internet. So if you do disable the Windows Update service, we recommend re-enabling it every few weeks/months to apply security updates.