The good news first: System Restore is available and fully functional in Windows 10. As we mentioned above, however, the bad news is that this feature is turned off by default. Even worse, the interface to enable and manage System Restore is relatively hidden in the legacy Control Panel, and isn’t something that a typical user will stumble upon while browsing the new Windows 10 Settings app. System Restore is useless without drive space in which to store its restore points, of course, so you’ll also need to reserve a portion of your drive for this purpose in the Disk Space Usage section of the window. As you drag the slider to the right, you’ll see the designated usage space represented both in actual size as well as a percentage of your drive. The more space you assign to System Restore, the more restore points you’ll have at your disposal in the event of a critical system issue. Assigning too much space, however, limits what’s available to you for applications and user data, so be sure to strike a good balance. On all but the smallest of drives, we recommend reserving at least 10GB for System Restore. Source: Why and How to Enable System Restore in Windows 10 Hard to understand why it's switched off after an upgrade.