Get back space after installing the May 2021 Update for Windows 10

[Windows Central]

After upgrading to the Windows 10 May 2021 Update, use these steps to reclaim additional space if your computer is running low on storage.
When upgrading to a new version of Windows 10 (for example, the May 2021 Update), the installation process makes a backup of the previous setup to undo the changes in the event of a compatibility problem or critical error moving to the new version.

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