We have compiled useful guides and resources covering PowerShell guides, Windows Updates, and Windows 11 upgrades.
November 2025 Security Updates
Microsoft released security updates for November 2025 on 11 November 2025. You can read more information about the various security updates and security vulnerabilities below.
Microsoft reports 63 security vulnerabilities in November 2025
Microsoft released information about 63 security vulnerabilities. 5 of these are CRITICAL vulnerabilities. There is a zero-day vulnerability as well.
You may read about the latest cumulative security updates below:
- KB5068864 for Windows Server 2016 – November 2025
- KB5068791 for Windows Server 2019 – November 2025
- KB5068787 for Windows Server 2022 – November 2025
- KB5068861 for Windows Server 2025 – November 2025
- KB5068907 ESU for Windows Server 2012
- KB5068905 for Windows Server 2012 R2 – November 2025
- KB5068966 Hotpatch for Windows Server 2025 – November 2025
- KB5068779 – Windows Server 2022 23H2 – November 2025
- KB5068840 Hotpatch for Windows Server 2022
- Microsoft Sharepoint Cumulative Updates – November 2025
- Microsoft Excel 2016 Security Updates – November 2025
- Microsoft SQL Server Security Vulnerability – November 2025
October 2025 Security Updates
Microsoft released security updates for October on 14 October 2025. The latest security bulletin discloses 175 security vulnerabilities. 6 of these are zero-day vulnerabilities that are either publicly disclosed or exploited.
We cover the following cumulative security updates for October 2025:
- KB5066836 for Windows Server 2016 – October 2025
- KB5066586 for Windows Server 2019 – October 2025
- KB5066782 for Windows Server 2022 – October 2025
- KB5066835 for Windows Server 2025 – October 2025
- KB5086875 for Windows Server 2012 – October 2025
- KB5066873 ESU for Windows Server 2012 R2 – October 2025
It is also important to patch Windows 10 computers with the latest cumulative update KB5066836 as Windows 10 became end of life on 14 October 2025.
We strongly recommend Windows 10 computers to be patched with the latest cumulative security update.
Windows 10 October 2025 Update
Windows 10 computers are becoming end of life on 14 October 2025. This is a significant development. Nearly 40 percent of total Windows operating systems in the world continue to live on Windows 10.
We are going to cover the Windows 10 EOL situation closely and bring updates below. In the interim, you may keep yourself updated about the latest Windows 10 EOL developments through pages below:
- Free ESU for Windows 10 in Europe (details about the FREE ESU program for European consumers)
- Free ESU for Windows 10 outside Europe (details about the FREE ESU program for consumers outside Europe)
- Windows 10 EOL Lawsuit (details about the lawsuit filed in California against Microsoft for Windows 10 EOL status)
- Extended Security Updates for Windows 10 (details about what, how, and why of Extended Security Updates for Windows 10)
- Price information of Windows 10 ESU (price information for retail consumers and business organizations for Windows 10 Extended Security Updates.)
- Steps to enroll in Windows 10 Extended Security Updates
We will update this with relevant information to keep Windows 10 consumers informed of the latest happenings around the end of life situation.
But, most Windows 10 consumers (non-business users) must be able to get Free subscription to Windows 10 Extended Security Updates until October 2026.
Here is a detailed guide on how you can make 1000 Microsoft reward points to get a free subscription to the Extended Security Updates for Windows 10 beginning October 2025 and working until October 2026.
Cybersecurity Case Studies
I am featuring cyber security case studies. The intent is to track and learn from recent cyber incidents that have had a major impact on organizations across the world.
We begin by analysing the cyber security incident reported in last August 2025 at Jaguar Land Rover. The JLR incident highlights the need to have a robust vulnerability remediation process and a judicious network segmentation to limit the scope of a purported cyber attack.
Windows 11 Upgrade
Windows 10 becomes end-of-life on 14 October 2025. Learn more about how Windows 10 EOL status requires you to update to Windows 11 before October 2025.
A Californian resident sued Microsoft for retiring Windows 10 in October 2025. You can read more details about the lawsuit on this page.
It may be pertinent for Windows 10 users to also understand how the Extended Security Updates for Windows 10 will work after October 2025.
The price information for Extended Security Update program for Windows 10 is shared in this page.
PowerShell Resources
Consider performing basic administration tasks using PowerShell. Some of the more significant Powershell guides on our site include the following: