Microsoft is expected to begin the rollout of Windows 10
November 2019 Update (version 1903) on November 12 and the
company has also made the RTM build available for more
As of November 5, the latest version of November 2019 Update is
Build 18363.449, but it may not be the final release candidate
that would be pushed to production devices. For now, Build
18363.449 is available for testers only and we might see a
newer build shipping to consumers, though the base will remain
As we’ve already learned, Windows 10 November Update will ship
with a handful number of new features and improvements only.
There will be plenty of bug fixes, performance improvements and
battery efficiency improvements too.
November 2019 Update installs with enablement package
Windows 10 November 2019 Update is deliberately low-key release
with a primary aim to enhance existing features, make
improvements to overall performance and battery life.
On PCs with May 2019 Update, the feature update is delivered as
an enablement package, which means you’ll find KB4517245
(enablement package) on Control Panel’s Windows Update page
after you install the update.
The enablement package KB4517245 modifies Windows 10 version
and build number to declare that November 2019 Update is
installed and it takes only a few minutes to download and
install the package, though a reboot is required.
In other words, Windows 10’s enablement package increments the
build number and also enables the new features. It’s also worth
pointing out that the About us page might still show
installation date of May 2019 Update under ‘Installed on’
section, rather than November 2019 Update.
What’s new and improved
Here are some of the features you can expect to see in the
Windows 10 November 2019 Update.
Windows 10 version 1909 speeds up Windows Search experience.
After applying the update, Windows Search will index your PC,
which means if you type a file name within File Explorer, it
would bring up a list of files related to the query.
For example, if you want to search for ‘Paris’ photos and
files, suggestions will begin appearing as you type ‘Par’. File
Explorer’s suggestions will instantly load the files you might
be looking for.
It also appears that Windows prioritizes recent searches
to populate the list and Explorer’s search performance has
significantly increased as a result. The searched keywords are
also cached, so you will have access to the same results again
when you search for the file next time.
In Windows 10 v1909, Microsoft organizes notifications by the
most recent and not by sender name. This should allow you to
find the app that bugs you with notifications the most, so you
can disable or delay notifications for that particular app.
You will find the option in Settings > System >
Notifications or you can click Manage notifications link at the
top of the Action Center.
The November 2019 Update also comes with changes to CPU’s
“favored cores,” which should improve performance of PCs with
processors from Intel or AMD.
Intel and AMD’s modern CPUs flag the highest-performing core in
the processor and November 2019 Update implements a new
rotation policy to distribute work more fairly among these
This also means that thermal stress would be reduced on the
core and battery efficiency of the computer will improve. It’s
not entirely clear how rotation policy and favored core will
work together, but processor and BIOS both should be also aware
of the favored cores to boost performance.