ESU Archives

Winsage

July 23, 2026

Windows 10 has almost three times as many active vulnerabilities as Windows 11, according to researchers

Windows 11 is installed on 78.8% of Windows computers, while 16.9% of users remain on Windows 10. Microsoft ended support for Windows 10 in October 2025, with an extension until 2027. Windows 10 has 1,903 active Common Vulnerabilities and Exposures (CVEs), 2.9 times more than Windows 11, which has 652 CVEs. Of the active CVEs on Windows 10, 66.6% are classified as high or critical risk, with 2.4% actively exploited. Small businesses show the most significant lag in upgrading, with 21.4% still using Windows 10, while two-thirds of large enterprises have moved to Windows 11. The cost of upgrading is a primary barrier for smaller companies.

Winsage

July 22, 2026

Still on Windows 10? You’re carrying 3x the security risk of Windows 11

A study by Lansweeper found that Windows 10 PCs have an average of 1,903 active security vulnerabilities, while Windows 11 systems have only 652 vulnerabilities. As of June 2026, nearly 20% of Windows PCs in the U.S. are still using Windows 10, despite Microsoft ceasing regular updates for it. Users can enroll in the Extended Security Updates (ESU) program for continued security updates until October 12, 2027. Security experts have urged users to upgrade to Windows 11 due to increasing vulnerabilities in Windows 10, while some data privacy experts recommend staying with Windows 10 for as long as possible.

Winsage

July 22, 2026

One in six Windows PCs still runs Windows 10, and the vulnerabilities are piling up

Approximately 17% of all Windows client devices are still running Windows 10, equating to about one in six machines. Windows 11 accounts for 78% of Windows devices, with third-party trackers indicating it surpassed 70% of desktop share as of February 2026. Official support for Windows 10 ended in October 2025, but Microsoft’s Extended Security Updates (ESU) program will provide patches until October 2027 for eligible devices. A typical Windows 10 device has an average of 1,903 active security vulnerabilities, nearly three times the 652 CVE-tracked flaws found on a Windows 11 machine. 66% of Windows 10 vulnerabilities are classified as "high" or "critical." Small and medium enterprises have 21.4% of their Windows devices still on Windows 10, while larger enterprises have 16.6%. The healthcare and pharmaceuticals sectors have 23% of devices on Windows 10, followed by consumer and retail at 22%, and manufacturing at 18%. Lansweeper is urging organizations to enroll in the ESU program and address reasons for remaining on Windows 10 as 2026 approaches.

Winsage

July 21, 2026

One in six PCs still run Windows 10, and they’re far less secure than Windows 11

Windows 10 officially reached its end of support in October 2025. Windows 11 has a 78.8% share of Windows devices, while Windows 10 maintains 16.9%. A typical Windows 10 device has an average of 1,903 active Common Vulnerabilities and Exposures (CVEs), compared to 652 on Windows 11, with 66.6% of Windows 10 vulnerabilities rated as high or critical. Microsoft's Extended Security Updates (ESU) program has been extended until October 12, 2027, providing critical security patches for eligible Windows 10 devices. The rise in memory and storage prices has made older Windows 10-compatible hardware more economically viable for some users.

Winsage

July 20, 2026

The Windows 10 hangover is becoming a security problem

Windows 11 is currently operating on 78.8% of Windows devices, while Windows 10 holds a 16.9% share. Microsoft ceased support for Windows 10 on October 14, 2025, making it vulnerable to security threats. Eligible Windows 10 devices can receive Extended Security Updates (ESU) until October 12, 2027, through a paid program, with free ESU available for users in the European Economic Area until October 14, 2026. Approximately 21.4% of devices in small and medium-sized businesses and 16.6% in large organizations still run Windows 10, often due to budget constraints. Devices in industries like healthcare and manufacturing are particularly slow to adopt Windows 11. Windows 10 devices face nearly three times the number of active vulnerabilities compared to Windows 11, with 66.6% rated as high or critical. About 2.8% of Windows 10 systems do not meet the hardware requirements for Windows 11. A total of 18.7% of Windows devices are running unsupported operating systems, with 22.2% on versions that will reach end of support within six months, totaling 40.9% of systems that are unsupported or soon to be. The consumer ESU program will expire on October 12, 2027, after which many devices will transition to unsupported status.

Winsage

July 18, 2026

Windows Server 2022 reach end of mainstream support in 90 days

Windows Server 2022 will end its mainstream support on October 13, 2026, transitioning to an extended support phase that will last until October 14, 2031, during which security updates will be provided at no additional cost. Windows Server 2022 was released in September 2021 and is part of the Long-Term Servicing Channel (LTSC) with a decade of support. Microsoft recommends upgrading to Windows Server 2025, which became generally available in November 2024 and will have mainstream support until November 13, 2029, and extended support until November 14, 2034. A 180-day trial for Windows Server 2025 is available through the Microsoft Evaluation Center. Additionally, hotpatching for Windows Server 2022 will be extended until October 2027 for Datacenter: Azure Edition systems, and the free Windows 10 Extended Security Updates program has been extended by one year. Windows 10 Enterprise LTSB 2016 and Windows 11 24H2 will stop receiving updates three months after their end of support.

Winsage

July 18, 2026

Windows 10 still powers one in six PCs around today — and that could be a major security issue very soon

Approximately 16.9% of Windows client devices are still using Windows 10, while Windows 11 accounts for 78.8% of installations. Windows 10's market share has significantly declined from nearly 50% in mid-2025. The migration to Windows 11 is slowing, with remaining Windows 10 devices facing more complex and costly upgrade scenarios, including having three times as many active Common Vulnerabilities and Exposures (CVEs) compared to Windows 11. Legacy operating systems like Windows 7, Windows 8.1, and Windows XP are also factors in the migration challenges. Microsoft’s Extended Security Updates (ESU) program offers protection until October 2027 for consumers and until October 2028 for commercial customers.

Winsage

July 16, 2026

Windows 10 just got a big security update. Here’s who gets it

Microsoft released update KB5099539 for Windows 10, enhancing security and addressing vulnerabilities. This update is part of a broader initiative for Windows 10 22H2, Windows 10 Enterprise LTSC 2021, and Windows 10 IoT Enterprise LTSC 2021. It will be automatically installed on eligible systems, resulting in build number 19045.7548. The update resolves issues in File Explorer related to OneDrive shortcuts and erroneous error messages during file deletions, as well as fixes for keyboard shortcut malfunctions. Windows 10 PCs will receive updated Secure Boot certificates, which are essential for system integrity, with Microsoft actively rolling these out. Secure Boot certificates for most Windows devices are set to expire starting in June 2026. Users must be enrolled in the Extended Security Updates (ESU) program to benefit from the KB5099539 update, which provides continued support until October 12, 2027.

Winsage

July 16, 2026

Windows 10 refuses to die, and the security bill is coming due

Approximately 16.9 percent of monitored Windows devices are still running Windows 10, a decline from about half a year ago. Windows 10 will receive updates until October 12, 2027, for consumer devices and until October 10, 2028, for commercial customers. Small and medium-sized businesses (SMBs) have 21.4 percent of their machines on Windows 10, with 23 percent in healthcare and pharmaceutical sectors and 22.7 percent in consumer and retail. A Windows 10 device has an average of 1,903 active Common Vulnerabilities and Exposures (CVEs), compared to 652 on Windows 11. Only 14 percent of Windows 10 assets have Extended Security Updates (ESU) patches applied. Many devices are tied to vendor certifications that complicate upgrades, and the rising cost of new PC hardware is a concern. The stagnation of Windows 11 adoption continues, with minimal change in market share distribution.

Winsage

July 16, 2026

Microsoft’s July patches fix over 600 flaws, shattering last month’s record

Microsoft has released its July 2026 Patch Tuesday updates, addressing 570 new security vulnerabilities, bringing the total for the month to over 620. The cumulative count of vulnerabilities patched this year has reached 1,380, exceeding the total of 1,250 for the entire year of 2020. Over 400 vulnerabilities are related to various versions of Windows, and the Windows 10 Extended Security Update program has been extended until October 12, 2027. Notable vulnerabilities include CVE-2026-56155 in Active Directory Federation Services, which allows attackers to gain administrator rights, and several critical Remote Code Execution vulnerabilities, including CVE-2026-57092 in Hyper-V and CVE-2026-56190 in Remote Desktop Protocol. Microsoft has also patched 97 vulnerabilities in Office products, with 17 classified as critical RCE vulnerabilities, and four vulnerabilities in Exchange Server, including CVE-2026-55008. The latest Microsoft Edge update addresses 27 vulnerabilities related to Chromium, and a vulnerability in Minecraft Bedrock servers has been patched.