Last week, prior to releasing Windows 10 (19H1) Build 18312, Microsoft shared details about a new feature for the upcoming seventh feature update for the operating system called Reserved Storage.

The basic premise behind the feature is to set aside a certain amount of hard drive space that Windows 10 can use to insure future upgrades to the OS have plenty of space to be successful.

I shared my initial observations on Reserved Storage in Build 18312 last week when I updated my bare metal testing devices and a virtual machine on the Windows Insiders program.

With the release of Windows 10 (19H1) Build 18317 this week, I decided to go into each of those same systems and see how much the space set aside by Reserved Storage had changed from one build to the other.

Note: My virtual machine update is not yet complete for some reason so those details will be added once that cycle is complete.

HP EliteOne1K

Build 18312 – 2.50GB; Build 18317 – 7.05GB

HP Spectre x360 (2015)

Build 18312 – 5.61GB; Build 18317 – 6.64GB

Lenovo X1 Yoga

Build 18312 – 5.70GB; Build 18317 – 6.88GB

Surface Book

Build 18312 – 7.09GB; Build 18317 – 6.75GB

Virtual Machine

Build 18312 – 7.04GB; Build 18317 – 7.13GB

As you can see, some systems bumped up the amount of space they have set aside for Reserved Storage while others used up less space for the feature. 

I will be keeping an eye on this as the development for Windows 10 (19H1) wraps up to see how much this fluctuates from build to build over multiple updates.

Reserved Storage Usage in Windows 10 (19H1) Build 18317 Screenshots Gallery