As Microsoft moves closer to officially ending support for Windows 10, a surprising number of devices are still relying on the aging operating system. Industry analysts estimate that hundreds of millions of PCs worldwide continue to run Windows 10, even as support winds down and security risks increase.
While Windows 10 doesn't suddenly stop working after end-of-life, the lack of ongoing security updates makes it far more vulnerable over time. According to recent market analysis discussed by Dell and other technology leaders, roughly 500 million existing Windows 10 devices are technically capable of upgrading to Windows 11, but have not yet done so.
For businesses, this delay isn't just a technology decision, it's a cybersecurity risk.
What Windows 10 End-of-Life Really Means
Microsoft has announced that Windows 10 reached its official end of support on October 14, 2025. Since that date, Microsoft no longer provides free security updates, bug fixes, or technical support for standard consumer editions.
There are limited Extended Security Update (ESU) options available for some users and organizations, but these are temporary, paid solutions, not long-term strategies.
Once full support ends:
- Newly discovered vulnerabilities will no longer be patched
- Performance and stability issues will remain unresolved
- Compliance risks may increase for regulated industries
- IT teams will have fewer options when issues arise
In short, Windows 10 systems become increasingly exposed the longer they remain in use after support ends.
Why So Many Businesses Are Still Hesitant to Upgrade
If so many devices can technically run Windows 11, why are upgrades moving so slowly?
1. Compatibility Concerns
Businesses often rely on specialized software, legacy applications, or older peripherals. Many leaders worry these tools won't function properly on Windows 11, despite the fact that most modern business applications already support it.
2. Hardware Confusion
Windows 11 introduced stricter requirements, including TPM 2.0 and newer processors. In many cases, devices meet these requirements but aren't properly configured, leading users to believe upgrades aren't possible when they actually are.
3. Migration Complexity
Operating system upgrades can feel disruptive. Without proper planning, businesses fear downtime, data loss, or frustrated users adjusting to a new interface.
4. "It Still Works" Mentality
Perhaps the most common reason is simple complacency. Windows 10 still functions today, but functionality does not equal security.
Why Unsupported Operating Systems Attract Cybercriminals
Cyber attackers are strategic. Unsupported operating systems are especially attractive because vulnerabilities remain open permanently once patching stops.
That means:
- Known exploits become more effective over time
- Malware can spread more easily across networks
- A single outdated device can compromise an entire environment
This risk is amplified in businesses with remote workers, shared networks, cloud-connected applications, or sensitive customer data.
Even organizations with strong cybersecurity tools can be undermined by outdated operating systems.
The Benefits of Moving to Windows 11
Upgrading isn't just about avoiding risk, it also brings real operational advantages.
Stronger Built-In Security
Windows 11 was designed with modern threats in mind, offering improved hardware-based security, encryption, and protections against phishing and malware.
Improved Performance
Many organizations see better efficiency, faster boot times, and improved system stability, especially on newer hardware.
Better Support for Modern Work
Windows 11 integrates seamlessly with cloud platforms, collaboration tools, and hybrid work environments, helping teams stay productive wherever they work.
Long-Term Support and Stability
Upgrading now ensures your systems remain supported and secure for years, rather than scrambling to react after support ends.
Why Waiting Is the Most Expensive Option
Delaying OS upgrades often leads to higher costs in the long run, including:
- Emergency upgrades after a security incident
- Data recovery and remediation expenses
- Extended downtime and lost productivity
- Regulatory or compliance penalties
- Damage to customer trust
Planned upgrades are almost always less disruptive and more cost-effective than reactive ones.
How TotalBC Helps Businesses Upgrade with Confidence
At TotalBC, we help organizations take a strategic, low-stress approach to operating system upgrades.
Our team can:
- Assess which devices are Windows 11-ready
- Identify systems that need configuration changes or replacement
- Test application and hardware compatibility
- Plan phased upgrades to minimize disruption
- Protect data before, during, and after migration
- Provide ongoing monitoring and support
Whether you manage a small team or a growing organization, we ensure upgrades are secure, efficient, and aligned with your business goals.
Staying Current Is a Security Strategy
With hundreds of millions of PCs still running Windows 10, attackers have a massive, and growing, target. While extended security updates may buy time, they are not a substitute for staying current.
Operating system upgrades are no longer optional maintenance, they are a foundational part of protecting your business.
Not sure if your systems are ready for Windows 11?
Let TotalBC evaluate your devices, plan a smooth upgrade path, and secure your environment before outdated systems become your biggest vulnerability.
Contact TotalBC today at 866-673-8682 or visit www.totalbc.com to schedule a Windows 11 readiness assessment or learn more.
