This feature will be enabled automatically on new PCs with Windows 10 version 1903 (that’s the May 2019 Update) pre-installed, along with clean installs of Windows 10 version 1903. You can check whether or not the system is using extra storage-and how much-through the Settings app. If it doesn’t, then there’s no need to go on, because Windows isn’t reserving any additional storage on your device. RELATED: Windows 10 Will Soon "Reserve" 7 GB of Your Storage for Updates How to Check If Your PC Has Reserved Storageīefore you go any further, you should make sure that your system is using Reserved Storage. In other words, reserved storage doesn’t mean that Windows is using a full extra 7 GB of storage-it’s likely storing some temporary files there that it would normally be stored elsewhere on your system drive. When not being used by update files, Reserved Storage will be used for apps, temporary files, and system caches, improving the day-to-day function of your PC.