Size of major Windows updates to become 35 percent smaller

Microsoft shared more details about its Unified Update Platform (UUP) and the good news is that the download sizes of major updates of Windows will become a lot smaller. The software giant is currently test driving the system with Windows Insiders and promises users in the regular release cycle of Windows can expect their download size to decrease by roughly 35 percent when going from one major update of Windows to another.

We are excited to begin releasing PC builds to Windows Insiders using differential download packages! As we discussed in November, as we roll out UUP in our retail release, users can expect their download size to decrease by approximately 35% when going from one major update of Windows to another. For retail users, the first time they get the UUP client code is part of the Creators Update, therefore, they will see the benefit of differential download packages when they go from the Creators Update to the next feature update of Windows.

For Windows Insider participants, the decrease in file size is even larger because because the changes going from one Insiders build to the next are smaller due to the much more frequent updates.