If you have been using Windows 10 for a long time, you might be debating whether it’s time to switch to Windows 11.
The decision gets even trickier if you are running an older computer.
That’s because you might face a situation where you feel forced to buy a new PC simply because of the operating system, even though your current hardware still works perfectly fine.
What’s crucial to understand is that regular support for Windows 10 has already ended.
Microsoft officially announced that mainstream support for Windows 10 ended on October 14, 2025. Following the end of support, standard security updates and technical assistance via Windows Update are no longer provided.
End of Support Doesn’t Mean Your Computer Stops Working Immediately
Just because Windows 10 support has ended doesn’t mean your computer will suddenly stop functioning.
The operating system itself will continue to run.
The real issue comes afterward.
While an active OS receives security updates whenever new vulnerabilities are discovered, Windows 10 no longer gets this protection under regular support.
Microsoft also clarifies that while a Windows 10 PC will still operate after support ends, the lack of security updates increases your exposure to security risks.
Therefore, “Can Windows 10 still run?” and “Is it safe to keep using Windows 10?” are two very different questions.
Windows 11 Isn’t Always the Right Answer for Older Computers
The main challenge lies with older systems.
For example, PCs powered by 4th-generation CPUs like the Intel i5-4670 do not meet the official system requirements for Windows 11.
On such PCs, you must decide whether to replace the hardware with a system officially supported by Windows 11, install Windows 11 using unofficial/unsupported methods, or consider an alternative operating system altogether.
Simply sticking with Windows 10 is not your only option.
What Should You Watch Out for If You Keep Using Windows 10?
If you are in a situation where replacing an old PC right away isn’t feasible, security should be your top priority.
For any internet-connected computer, OS security updates are critical.
Consequently, if you must continue using Windows 10, you should exercise extra caution—especially when handling sensitive personal information or performing online banking and financial tasks.
Additionally, keeping your web browsers and key software applications updated as much as possible is important.
However, keep in mind that updating browsers or apps does not replace or provide OS-level security updates.
It is vital to distinguish between the two.
Windows 10 ESU Is Another Option
Microsoft offers an Extended Security Update (ESU) program for consumers following the end of Windows 10 support.
In its official guidance, Microsoft suggests enrolling in Windows 10 ESU or upgrading to a Windows 11-compatible device for systems that fail to meet Windows 11 system requirements.
Thus, there is no need to jump to the conclusion that an older PC must be discarded immediately.
However, you should check the eligibility terms and costs associated with ESU based on your usage environment.
Ultimately, You Need to Evaluate PC Lifespan and Cost Together
When deciding whether to keep using an old PC, you shouldn’t look at the operating system in isolation.
For instance, if your current PC has the following characteristics, evaluating the cost-effectiveness of an upgrade is essential:
An outdated CPU
Outdated memory specifications
An outdated motherboard
Outdated storage devices
Lack of official Windows 11 support
In this case, replacing the entire platform rather than upgrading just the CPU might be far more cost-effective.
On the flip side, if you already use an SSD, have sufficient RAM, and are generally satisfied with your computer’s performance, you don’t necessarily have to buy a new PC right away. Instead, you can carefully manage security concerns related to support termination while planning your next upgrade milestone.
When Upgrading an Older PC, Start by Considering the OS
In the past, when upgrading a computer, CPU performance or graphics card power were usually the top priorities.
Today, however, OS system requirements have become a crucial factor.
In particular, if you plan to use Windows 11 officially, you must verify multiple requirements including CPU generation, TPM 2.0, and Secure Boot.
Therefore, when upgrading an older computer, rather than simply buying a “slightly faster CPU,” it is essential to ensure that the motherboard/platform officially supports the operating system you plan to run.
Conclusion
Windows 10 can still be run after support ends.
However, being able to run it and being safe to continue using it are two different matters.
Currently, Microsoft’s general support for Windows 10 ended on October 14, 2025.
Therefore, if you are using an older PC, check whether your computer officially supports Windows 11 first. If it doesn’t, consider transitional measures like Windows 10 ESU or evaluating a full PC replacement.
Ultimately, the core question isn’t “Should I discard Windows 10 immediately?” but rather making a comprehensive assessment based on your hardware lifespan, security requirements, and overall upgrade costs.