Microsoft has revealed that it plans to integrate a feature called reserved storage into Windows 10 1903.
Windows 10 will automatically hold an available storage space, which will be used exclusively by the operating system.
Microsoft is reportedly trying to improve the reliability of "critical operating system functions" based on disk space, e.g. updates or caching.
Today's devices will not have reserved storage enabled by default, but all new installations from Windows 10 version 1903 onwards will automatically use dedicated storage.
Microsoft says the new feature will free up around 7 Gigabytes of disk space, which is not a lot of data today, unless you're using a device with very limited storage space.
The 7 Gigabytes that Windows 10 will hold may change over time, and Windows 10 may start using more space if one device does not have enough storage space.
Windows 10, according to the company, will regularly delete files in this area when they are no longer needed.
Microsoft has also released the following instructions to help Insiders enable the new feature:
Search for Registry Editor (regedit) and open it.
Follow the path HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ ReserveManager
Right-click on ShippedWithReserves to modify and update its value to “1.”
So if you upgrade the device to the next available version, you will use the reserved storage!
How does it work;
Microsoft's explanation to Technet does not say much, but Craig Barkhouse he explains in a comment that Microsoft has created a solution that adds "new support" to the NTFS file system.
The idea is that NTFS provides a mechanism that determines how much space the operation needs, for example 7GB. Then NTFS keeps 7GB for maintenance only.
Barkhouse also states that the main disk will display the available space and that the reserved storage will be automatically removed from the disk.
Be happy; Nobody knows. Let's see it in practice first.