We have seen how to restore your personal files after performing custom installation of Windows 7 automatically using Microsoft Fix it 50582. Microsoft has now also released a Recover Personal Files Tool that lets you retrieve files from the Windows.old folder in Windows 8/10.
Retrieve personal files from Windows.old folder
Recover Personal Files Tool
While you can always retrieve files from the Windows.old folder in Windows 10/8 by navigating to C:\Windows.old\Users\username folder and cut-pasting the Documents, Pictures, etc folders into your desired location, the new Recover Personal Files Tool does all the work for you.
The Recover Personal Files Tool will automatically retrieve your personal files from the Windows.old folder and copy them back to their original location.
Learn how to remove Windows.old folder after using Windows Upgrade in Windows 10/8/7.