Microsoft ended support for Windows 10 on October 14, 2025. That means businesses still running Windows 10 are now operating on a system that no longer receives security patches, bug fixes, or technical support from Microsoft.
For Michigan businesses still running Windows 10 on part or all of their fleet, that’s a real problem. Unpatched systems become easy targets, and cyber insurance carriers are starting to ask about operating system support status before they’ll renew a policy.
The deadline has passed, and the businesses that continue to delay usually end up paying more, moving faster than they’d like, and taking on risk they didn’t need to take on.
Quick Answer
- Windows 10 no longer receives security updates from Microsoft
- Running unsupported operating systems increases cyber risk and can affect insurance eligibility
- Businesses can upgrade eligible devices to Windows 11, replace older hardware, or enroll in Extended Security Updates as a short-term bridge
- Compliance frameworks like HIPAA and PCI-DSS treat unsupported software as a documented risk
- A phased upgrade plan spreads out cost and avoids disruption to daily operations
Why This Matters in 2026
Every piece of software has a support lifecycle. Once that lifecycle ends, the vendor stops shipping fixes for newly discovered vulnerabilities. Attackers know this, and unsupported systems become preferred targets because the flaws found in them will never get patched.
For a Michigan business, that risk shows up in a few concrete ways:
- Higher chance of a successful ransomware or malware attack
- Cyber insurance applications and renewals asking pointed questions about OS support
- Client and vendor contracts that require current, supported systems
- Slower performance and compatibility issues as software vendors stop testing against the old OS
Risks, Threats, and Compliance Issues
Security Risk
Once patches stop, every new vulnerability discovered in Windows 10 stays open indefinitely. This is exactly the kind of gap ransomware operators look for, and it only widens over time.
Compliance Risk
Healthcare practices, financial firms, and legal offices in Michigan operate under frameworks like HIPAA, GLBA, and PCI-DSS. Auditors flag unsupported operating systems as an unresolved risk, which can complicate audits, client trust, and insurance underwriting.
Insurance Risk
Cyber insurance carriers have tightened their underwriting standards. Several now ask directly whether all business devices run supported operating systems, and an honest “no” can mean higher premiums or a denied claim after an incident.
Upgrade Options for Michigan Businesses
Most businesses fall into one of three paths, often a mix of all three across their device fleet.
1. Upgrade Eligible Devices to Windows 11
Many devices purchased in the last four to five years already meet the hardware requirements for Windows 11. For these machines, the upgrade is largely a matter of scheduling, testing business-critical applications, and rolling it out with minimal disruption.
2. Replace Devices That Don’t Qualify
Windows 11 has stricter hardware requirements than past versions, including TPM 2.0. Older desktops and laptops that don’t meet the bar will need to be replaced rather than upgraded. This is the right moment to right-size the fleet rather than replace one-for-one out of habit.
3. Extended Security Updates as a Bridge
For businesses that need more time, Microsoft offers a paid Extended Security Updates program. This buys additional months of critical patches, but it’s a bridge, not a destination. It should come with a firm migration deadline attached, not become the new normal.
Cost of Ignoring the Issue
Delaying an upgrade decision doesn’t remove the cost. It just moves that cost somewhere less predictable.
- A single ransomware incident can cost far more than a fleet-wide hardware refresh
- Emergency, unplanned hardware purchases are almost always more expensive than a phased rollout
- Downtime from a breach affects revenue, client trust, and staff productivity
- Non-compliant systems can jeopardize contracts that require current security standards
Businesses that plan the transition on their own timeline consistently spend less than those forced into it by an incident or a failed audit.
Step-by-Step Upgrade Framework
Step 1: Assessment
Inventory every device across the business. Identify which ones already meet Windows 11 requirements, which need a hardware refresh, and which are running mission-critical software that needs compatibility testing first.
Step 2: Risk Identification
Flag devices handling sensitive data, regulated information, or client-facing systems. These get priority, since they carry the highest compliance and security exposure.
Step 3: Implementation
Roll out upgrades and replacements in phases, department by department or location by location, rather than all at once. This limits disruption and gives IT room to catch issues early.
Step 4: Monitoring
Once devices are upgraded, monitor for compatibility issues, performance problems, and any lingering legacy software that still needs attention.
Step 5: Continuous Improvement and Compliance
Document the transition for audit and insurance purposes, and build device lifecycle planning into ongoing IT strategy so this doesn’t become a last-minute scramble again in a few years.
Why an MSP Approach Works Better for Michigan SMBs
Handling a fleet-wide OS transition alongside daily operations is a lot to ask of an internal team, especially at a small or midsize business without dedicated IT staff.
A managed IT services partner brings a few advantages to this specific problem:
- A clear inventory and assessment process instead of guesswork
- Vendor relationships that can smooth hardware procurement and pricing
- Experience phasing rollouts without disrupting daily work
- Documentation that supports compliance audits and insurance renewals
Outsourcing this kind of transition often costs less than the internal time and risk of handling it piecemeal, and it puts the responsibility for getting it right on a team that does this for a living.
Real-World Use Cases
Healthcare
A medical practice running Windows 10 on shared workstations faces both HIPAA requirements and ransomware risk tied to patient records. Upgrading protects both.
Finance
Financial firms handling client account data need current systems to satisfy GLBA expectations and the scrutiny of cyber insurance underwriters.
Legal
Law firms store privileged client information on end-user devices. An unsupported OS on even one machine is a gap opposing counsel or a breach notification law would take seriously.
SMB Retail
Retailers processing card payments fall under PCI-DSS. Point-of-sale systems and back-office machines both need to be on supported operating systems.
Manufacturing
Plant floor systems sometimes run older, specialized software that resists upgrades. These need careful compatibility testing and, in some cases, a longer bridge period before replacement.
Frequently Asked Questions
A software audit often finds significant savings and security improvements in a single session. If you have never done one, or if it has been more than a year, we can help. Reach out to get started.
