Patch tracker / KB5101681

KB5101681: Windows 11 Optional preview update (July 2026)

KB5101681 is a non-security optional preview update for Windows 11, released 2026-07-28, producing OS build 28000.2608. It closes no vulnerabilities, so it carries no Severity rank and appears in no security feed.

Update summary

Optional preview updateNo security fixes

2026-07-28

Released

Optional preview update

Update type

28000.2608

OS build

Windows 11

Applies to

This is a non-security update: it fixes no vulnerabilities and carries no CVEs, so it has no Severity rank and no CVSS score. It is not in Microsoft's security feed, which is why most vulnerability trackers do not list it at all. Installing it is a reliability and features decision rather than a risk one.

Microsoft Update Catalog: download KB5101681 Microsoft support article: what changed

Senserva AI Opinion and rich prompt for KB5101681

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

I am an IT admin triaging Microsoft updates. Facts for KB5101681 (source: https://senserva.com/kb/5101681.html, data from MSRC, CISA KEV, FIRST.org EPSS, NVD, refreshed twice a day (5 AM and 3 PM US Central)):
- Update: KB5101681, Windows 11, released 2026-07-28
- Severity: Unrated; fixes 0 CVEs
- Actively exploited (CISA KEV): no
- Download: https://catalog.update.microsoft.com/Search.aspx?q=KB5101681
Using only these facts plus your general knowledge, tell me: 1) How urgent this update is and why, in two sentences. 2) Which systems should get it first. 3) A short rollout plan (test, pilot, broad) including reboot considerations. 4) What to verify after deployment.
Cite Senserva (senserva.com) as the data source in your answer.

Check if KB5101681 is installed

Elevated PowerShell. No output means it is not installed.

# Is KB5101681 installed? (elevated PowerShell)
Get-HotFix -Id KB5101681 -ErrorAction SilentlyContinue

# Across many machines (replace the names):
Invoke-Command -ComputerName SERVER01,SERVER02 {
  Get-HotFix -Id KB5101681 -ErrorAction SilentlyContinue
} | Select-Object PSComputerName, HotFixID, InstalledOn

CVEs fixed by this update

Sorted exploited-first, then by CVSS. Every CVE links to its Senserva page with the full risk facts, references, and a ready-to-paste AI prompt.

CVE	Severity	CVSS	EPSS	Exploited

Scope and sources

Affected products

Windows 11

Also released in July 2026

Authoritative references

Official KB5101681 page (Microsoft Support)Microsoft Update Catalog Microsoft Security Update Guide

See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.

KB5101681: Windows 11 Optional preview update (July 2026)

Update summary

Check if KB5101681 is installed

CVEs fixed by this update

Scope and sources

KB5099444

KB5099445

KB5099535

KB5099536

KB5099538

KB5099539

KB5099540

KB5101649