The short answer
Your Windows 10 PC does not stop working because standard support ended. Microsoft ended standard support on October 14, 2025. Continuing to run an operating system and receiving security maintenance are different things. This guide was checked on October 18, 2026; use the official links below to confirm current eligibility before making a change.
Why October 2026 search results can be confusing
Older guidance described consumer Extended Security Updates ending in October 2026. Microsoft’s current Windows support page instead lists October 12, 2027 for consumer ESU coverage. Do not decide from a search snippet alone: open the current Microsoft page, check that it covers personal devices, and read the conditions applicable to your region. Commercial and special Windows editions have their own arrangements.
What ESU does—and does not—mean
Extended Security Updates provide a temporary security-maintenance path for eligible, enrolled devices. They are not a return to ordinary Windows 10 feature development or a promise that every application will remain supported. Treat ESU as time to prepare your next step. Check the enrollment state on the actual PC rather than assuming that having Windows 10 automatically means you are covered.
Check Windows 11 compatibility before spending money
Microsoft’s PC Health Check app can assess Windows 11 eligibility. The requirements include a compatible processor, at least 4 GB RAM, 64 GB storage, UEFI with Secure Boot capability and TPM 2.0. Those are minimum requirements, not a guarantee of smooth performance in your particular games or workloads. Use the complete official requirements and check the manufacturer’s information for your model.
Use this decision checklist
First, identify your Windows version and edition. Next, check Windows Update and run PC Health Check. If the PC is eligible, review the upgrade offer and confirm compatibility with the apps and peripherals you depend on. If it is not eligible, check your consumer ESU options while planning a supported replacement or another supported operating system. A work or university-managed PC should be handled with its administrator.
Before you change the operating system
Make a separate backup of important files and verify you can open the backup. Save your game exports and other local-only data as well as documents. Write down the applications and peripherals you need to test after migration. A hardware purchase is not the first diagnostic step: knowing the precise compatibility problem gives you a better basis for deciding what to do.
Two questions worth separating
Will my browser or chess game still open? That depends on the application and its supported versions. Is Windows itself receiving the security updates appropriate to my device? That depends on its support and enrollment status. A working website is not evidence that the underlying operating system is fully maintained. Check both questions independently.