Windows keeps copies of all installed updates from Windows Update, even after installing newer versions of updates that are no longer needed and taking up space. … Windows saves old versions of files that have been updated by a service pack. If you delete the files, you won’t be able to uninstall the service pack later.

How much space do Windows updates take?

So, to install that Windows update, you’ll need a minimum of around 10GB of free space. That’s on top of the 20GB minimum needed for Windows 10 and the space taken up by applications, files, and other data on your hard drive or SSD.

Do Windows 10 updates take up space?

Following the update, you may notice that your amount of free disk space has shrunk. That’s because Windows stores installation files from the previous version should you want to revert back to it. That’s fine. But at some point you’ll likely want to stick with the updated version.