ESU program Archives

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 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 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 2, 2026

Windows Weekly 990: Don’t Be Nostalgic for Stupid

Microsoft has extended the Windows 10 Extended Security Update (ESU) program for consumers by an additional year, now set to end in October 2027. Significant changes are being made to the Windows Insider experience, including a new Windows Update feature and the introduction of five new builds. Microsoft has started offering 8 GB models of its Surface Pro and Laptop, while discontinuing its Surface Go products. HP has partnered with OpenAI, and Anthropic has launched Sonnet 5. Xbox Series X|S prices are set to increase on August 1, coinciding with the discontinuation of the 2 TB X model. Microsoft may lay off approximately 5,500 employees, about 2.5 percent of its workforce. The Minecraft Bedrock edition has introduced closed captions, and Sony plans to cease the sale of physical PS media by 2028.

Winsage

June 30, 2026

Windows Defender ‘BlueHammer’ vulnerability now exploited as part of malware campaigns — CISA issues warning despite patch release on April 14

A race condition vulnerability in Windows Defender, known as BlueHammer, has been exploited by the hacker Nightmare Eclipse, allowing attackers to gain SYSTEM user access. Microsoft released a patch for this vulnerability on April 14, but the Cybersecurity and Infrastructure Security Agency (CISA) has flagged it as actively exploited in ransomware campaigns. The average time to apply critical OS patches across Windows 10 and 11 is now 127 days, with enterprise environments averaging 76 days. Estimates suggest that 15% to 26% of Windows 10 machines remain unpatched, with a conservative estimate of 20% translating to one in five machines being vulnerable. Microsoft has extended security updates for Windows 10 until October 14, 2027, but public awareness of the updates remains low.

Winsage

June 30, 2026

Microsoft extending Windows 10 support to 2027 raises a bigger issue: Windows 11 still isn’t winning over the majority of users (including our readers)

Microsoft announced it will extend support for Windows 10 until 2027, despite the operating system officially reaching its end of support on October 14, 2025. Initially, Microsoft planned to provide only one additional year of updates through its Extended Security Updates (ESU) program, which will now continue until October 14, 2026. Critics, including advocacy groups, express concerns that this extension is a temporary fix rather than a sustainable solution, fearing it may lead to the premature retirement of up to 400 million PCs. Users have suggested alternative operating systems and a dual-support model for Windows 10 and Windows 11. The rising hardware prices and demands of AI technologies complicate the transition to Windows 11 for many users.

Winsage

June 28, 2026

Microsoft Caught Between Windows 10 Stagnation and AI Infrastructure Splurge as Macro Data Looms

Microsoft shares rose 5.71% to close at €327.90 on Friday, recovering from a 52-week low of €307.10 earlier that day. The company reported revenue of €82.9 billion in its latest quarterly earnings, an 18% year-on-year increase, driven by cloud and AI services. On June 22, Chevron announced a 20-year power purchase agreement with Microsoft for approximately 2.67 gigawatts of capacity for a data center, with the first power delivery expected in 2028. Microsoft extended its Extended Security Updates program for Windows 10 home users by another year, pushing the final security patch deadline to October 2027. The stock's closing price is only 6.77% above its 52-week low, with a 50-day moving average at €352.96 and a 200-day average at €383.98. The relative strength index is at 43, indicating no strong momentum.

Winsage

June 27, 2026

Whew! Windows 10 Users Get a Year’s Extension for Security Updates

Microsoft has extended its Extended Security Updates (ESU) program for Windows 10 until October 14, 2027, after the original end-of-life date was set for October 13, 2023. The ESU program is the only way for users to receive security patches after Microsoft ceased support for Windows 10 in October 2025. Users must be running at least version 22H2 and have a Microsoft account to enroll in the ESU program. The extension aims to provide customers more time to transition to new hardware, which requires a Trusted Platform Module (TPM) for upgrading to Windows 11. Additionally, the prices of laptops and desktop PCs have increased due to demand from artificial intelligence and data centers, although budget-friendly laptops have started to emerge in the market.