Windows 10 security and other important updates are usually
released on the same day and most of the updates cannot be
selected or rejected individually unless you use Microsoft
Update Catalog or other advanced tools like WSUS for business.
Besides these cumulative and security updates, Windows 10 also
offers servicing stack separately to fix potential issues in
the Windows Update components.
Servicing stack updates are installed automatically when you
apply the monthly cumulative updates, but in some cases,
servicing stack updates are accidentally skipped and it could
lead to installation problems.
Starting with February 2021 optional
KB4601382 cumulative update for version 20H2 and version
2004, Windows 10’s update process has been improved. Microsoft
has confirmed that servicing stack updates (SSUs) will be
included with the usual cumulative updates going forward.
With the new combined cumulative and servicing stack updates
approach, Microsoft has finally fixed a potential issue where a
monthly update couldn’t be installed because SSU wasn’t applied
Microsoft originally started testing the idea last year and it
was recently enabled for Windows 10 version 1909 and older.
This new approach is expected to improve the reliability of
Windows Updates and reduce the number of errors encountered
during the monthly installation process.
In the changelog, Microsoft noted that the first combined
update includes general bug fixes and ‘quality improvements’ to
ensure a robust and reliable servicing stack.
General bug fixes for Windows 10 20H2
In addition to SSU improvements, Microsoft has also confirmed
that this month’s optional update will fix issues with Windows
Out of Box Experience (OOBE), which appears when users apply a
big feature update.
Likewise, Microsoft has also patched an issue affecting high
dynamic range (HDR) displays and certain low-latency capable
Microsoft is currently not aware of any new known issues and
this update is optional, which means it can be skipped.