October 2025 Deadline: What Happens to Your Apps When Windows 10 Expires?

Microsoft has set an official deadline: October 14, 2025, marks the end of Windows 10 support. After this date, the operating system will no longer receive security updates, bug fixes, or technical assistance. While many business owners focus on the OS itself, the bigger question is: what happens to your business applications and productivity tools when Windows 10 support ends? 

The truth is, it’s not just your operating system at risk; your applications, data security, and overall productivity could take a hit if you don’t plan ahead. 

Why Windows 10 End of Support Puts Your Applications at Risk 

No More Security Patches = More Cyber Threats 

Without Microsoft’s regular security updates, vulnerabilities discovered after October 14, 2025, will remain unpatched, leaving your applications exposed.

This means: 

• Increased Risk of Cyberattacks – Hackers target outdated systems, making your applications an easy entry point for ransomware, malware, and phishing attacks. 
• Business Interruptions – A single security breach can halt operations, disrupt workflows, and damage customer trust. 
• Compliance Violations – Businesses in regulated industries such as healthcare, finance, and legal could face penalties for running applications on unsupported software. 

Compatibility Problems: When Applications Stop Playing Nice 

As software vendors roll out updates, they eventually stop supporting older operating systems. That means your favorite tools and apps may not function properly on Windows 10.

Expect: 

• Missing Features – New app functionality will be built for Windows 11 and beyond, leaving Windows 10 users behind. 
• Outdated Security in Applications – Even if apps continue to update, security features may not work correctly on an unsupported OS. 
• Frequent Application Crashes – Programs may freeze, glitch, or fail to open entirely. 

The Hidden Cost: No More Vendor Support 

It’s not just Microsoft pulling the plug. Software and hardware vendors will follow.

Businesses will face: 

• Poor Integration With Modern Tools – Cloud platforms, productivity apps, and collaboration tools will be optimized for Windows 11, not Windows 10, leading to compatibility issues and reduced productivity. 
• No Customer Support – Application providers will stop assisting with issues on Windows 10. 
• Hardware Limitations – New printers, scanners, and devices may not ship with Windows 10 drivers, limiting your ability to upgrade or expand your setup.

The Business Impact: Slower Systems, Higher Costs 

Operating on outdated technology affects more than IT; it hurts the bottom line.

Businesses that don’t upgrade can expect: 

• Increased Downtime – Frequent errors and instability lead to costly downtime. 
• Sluggish Performance – Applications run slower, frustrating employees and reducing efficiency. 
• Rising IT Costs for Maintenance – Maintaining legacy systems demands more time, IT resources, and budget. 

Preparing for the Windows 10 Deadline 

The smartest move is to plan your upgrade strategy now, not later. Here’s how: 

1. Back Up Your Data – Safeguard business-critical information before making changes. 
2. Upgrade to Windows 11 (or Replace Hardware) – Use Microsoft’s PC Health Check to confirm device compatibility. 
3. Budget for Hardware Refresh – Some devices won’t support Windows 11 and may need replacing. 
4. Partner With a Trusted IT Provider – Ensure a seamless transition with minimal downtime, enhanced cybersecurity, and proactive support. 

Don’t Wait Until October 2025 

Waiting until the last minute could leave your business scrambling with compliance risks, cyber threats, and lost productivity. 

At Teknologize, we help businesses in Washington and Oregon transition smoothly from Windows 10 to Windows 11. 

👉 Start with a FREE Windows 11 Readiness Assessment. Our experts will review your applications, check system compatibility, and design a secure upgrade plan tailored to your business.

About Teknologize

Teknologize is a SOC 2 Type II accredited Managed IT and Cybersecurity provider serving small to mid-sized businesses across Washington and Oregon. We deliver full-service Managed IT Support, Co-Managed IT Support, advanced Cybersecurity Solutions, and IT Compliance Services for regulated industries, including Healthcare, Financial Institutions, the Utilities Sector, Manufacturing, and Professional Services.

👉 Book a Discovery Call to see how Teknologize can support your business.

Our Offices

Tri-Cities, Washington – 509.396.6640 | Yakima, Washington – 509.396.6640

Bend, Oregon – 541.848.6072 | Seattle, Washington – 206.743.0981

Questions about your IT or Cybersecurity? Give us a call today!