The fact that Windows 10 is nearing the end of its support and that Microsoft is pushing hard towards Windows 11 means that many already see anything that came before as "old glory." But there's one system that refuses to retire: Windows 95 is still alive in places where stopping the machinery is not an option.and where compatibility outweighs novelty.
Far from being a mere curiosity for nostalgics, this veteran operating system remains at the heart of trains, farms, laboratories, and even critical infrastructure. The paradox is clear: We know that using an unsupported system is a significant security riskBut in many industrial and scientific settings, changing something that works can be more dangerous (and expensive) than keeping it as is.
Why has Windows 95 become an indispensable "old rocker"?
The Windows 95 myth isn't based solely on nostalgia; it's based on the fact that, for certain legacy systems, It is the central piece around which the entire production or control chain revolvesIn many installations, the logic is clear: if the original software was designed for that operating system and has been working for decades without serious failures, touching it is almost sacrilege.
In home environments it's not a problem if a program stops working after an update, but in industry, transportation, or research, Any friction between new hardware and old software can cause cascading effects.Conflicts arise with controllers. incompatibilities with critical peripheralsCalibrations that no longer match and processes that go out of range. And when the safety of people or the continuity of a business depends on those processes, prudence is paramount.
That's why many managers cling to the unwritten rule of engineering: “If it ain’t broke, don’t fix it”It is a philosophy that fits very well with systems like Windows 95 or even with languages like COBOL and FORTRAN, still widely used in banking, insurance or scientific centers because rewriting or migrating them would be a real nightmare.
Trains in Sweden: modern cabins with the soul of 1995
One striking case is that of some trains in Sweden, where a software developer who also works as a train driver recounted that In one of his "offices" he still uses a touchscreen running Windows 95.At first glance, the cockpit looks modern, with a well-integrated graphical interface, but the brain that governs everything is that mid-90s system.
These trains, which operate in regions such as Bergslagen, incorporated this system in the early 2000s, when the locomotives were delivered. Some computers were even upgraded to Windows XPBut a large part of the fleet remained exactly as it was delivered: Windows 95, with no significant changes since then. For maintenance personnel, this was a technological revolution compared to the older trains, with cabs full of physical controls and almost no computer systems.
The railway company's reasoning is very simple: That combination of hardware, touchscreen, and control software has been tested for years in real-world conditions.Changing the operating system could disrupt a delicate integration affecting brakes, internal signaling, energy management, and fault diagnostics. As long as the network where these machines operate is isolated and the system is not connected to the internet, the risk of cyberattacks seems manageable compared to the risk of halting trains or causing security breaches due to a poorly planned migration.
An egg farm in Germany: 40.000 units per day managed by Windows 95
Even in the heart of Europe, we find Windows 95 still running key processes. In Düsseldorf, Germany, a Large poultry farms still depend on specific software that only works on Windows 95The machine responsible for the process occupies about 40 x 40 meters and takes care of everything: receiving, classifying, weighing and packaging the eggs.
Each day, approximately 40.000 units are processed, sorted by weight and quality, and organized into boxes of six or ten. The software, custom-developed for that machine, uses Windows 95 as an interaction layer with sensors, scales, labelers, and printers.The mechanical part could continue moving eggs even if the system fails, but all digital traceability would be lost and each batch would have to be recorded by hand.
The farm owner explains that The system is stable, and when there is a problem, simply restarting restores everything to normal.Their experience is that, in that controlled environment, Windows 95 performs better than newer programs that tend to bring more updates, more changes, and a greater chance of breaking something.
However, the problem is not just the operating system, but the entire ecosystem surrounding it. The application was written by a programmer who can no longer adapt it to modern systems.The rest of the components depend on older hardware: specific printers, data acquisition cards, proprietary interfaces… Finding spare parts involves searching in second-hand catalogs and auction portals, because many parts are no longer manufactured.
The cost of renewing the line skyrockets: The farmer estimates that replacing the machine would cost the same as a family home.And it's not just the investment in the new equipment; it's also the weeks of downtime required for installation, certifications, testing, and staff training. In that context, sticking with Windows 95 seems like a cold, calculated decision, rather than a nostalgic whim.
Windows 95 in air traffic control and other critical infrastructure
Seeing Windows 95 on a farm or on a train is already surprising, but The impact is greater when we talk about the control of air traffic in the United States.The Federal Aviation Administration (FAA), responsible for the country's civil aviation, has been operating for decades with systems anchored in the 90s.
For years, air traffic controllers have worked with computers that ran Windows 95 and relied on floppy disks and paper strips for some of their operationsThis outdated approach has recently been deemed "unsustainable" by the agency itself. The problem is no longer just cybersecurity—these networks are often highly isolated—but also the reliability of aging hardware and unsupported software.
Incidents like the chaos at Newark airport following a systems failure have highlighted this vulnerability. That's why a coalition called Modern Skies has been formed, which is lobbying for definitively abandon floppy disks and obsolete operating systems in the air infrastructureBefore Congress, FAA officials have been clear: the system must be replaced, floppy disks must be left behind, and workflows that still depend on paper must be digitized.
The modernization is part of the program Next Generation Air Transportation System (NextGen)The plan aims to completely transform how air traffic is managed. The Department of Transportation speaks of a four-year timeframe and a cost of tens of billions of dollars, although many experts consider this optimistic. The challenge is to update an infrastructure that operates 24/7 without interrupting operations., something similar to changing an airplane engine in mid-flight.
This is not the only striking case in the sector. At Paris-Orly airport, for example, Windows 3.1 has even been used for a weather system called DECORThe system is responsible for providing critical information about storms and reduced visibility to air traffic controllers. Failures in this system led to temporary airport closures in 2015 and 2017, and promises to upgrade it have been delayed year after year.
Boeing, floppy disks and old Windows in the world of aviation
Commercial aviation is not immune to technological relics either. A classic example is the Boeing 747-400, whose navigation system is updated using 3,5-inch floppy disksEvery 28 days, a technician boards the plane with a series of disks to load the latest database of routes and navigation points, in blocks of just 1,44 MB per disk.
This type of practice is not so much a problem of lack of knowledge, but of certifications: Any change to hardware or software within a commercial aircraft involves extremely strict validation processes.Replacing a floppy disk drive with a modern solution isn't simply a matter of plugging in a USB cable: it requires testing, documentation, and regulatory approval, which is both expensive and time-consuming.
Furthermore, former Boeing employees have explained that In some manufacturing lines, there were still critical equipment systems running Windows 95 or even Windows 3.1In these cases, the logic is repeated: these are systems that control specialized machinery or test benches that were designed for that environment, and migrating them involves redesigning both the software and part of the hardware.
Observatories, laboratories and the case of Arecibo
Astronomy and scientific research are other areas where Windows 95 refuses to disappear. In the historical At the Arecibo Observatory in Puerto Rico, a 486 computer running Windows 95 has been used for certain measurements.That equipment incorporates cards with an ISA interface designed specifically for a 90s experiment.
The scientists responsible for these projects have been collecting data with the same configuration for decades, which guarantees that time series are consistent over timeChanging the system could minimally alter the readings, introduce biases, or break historical comparisons, something unacceptable to many researchers.
Of course, keeping a 486 alive in the 21st century is no trivial task. When a part fails, Technicians turn to websites like eBay to find replacement componentsIt's almost artisanal maintenance, but preferable, according to them, to restructuring the entire experiment from scratch.
In other laboratories, they have been seen Atomic force microscopes managed by Windows 95 PCsThose in charge explain that technologically it could be migrated to something more recent, but the cost of redesigning the integration and recalibrating the instrument is not worthwhile as long as the equipment continues to fulfill its function.
ATMs, offices and military systems: beyond the anecdote
ATMs are another classic example of outdated systems. In numerous countries, including some European and developing nations, There are still ATMs that run on Windows XP, Windows NT, Windows 98, and even Windows 95.In many cases they continue to operate because they are integrated with very old banking networks and have gone years without serious incidents.
The problem is that if these ATMs are connected to wider networks without proper safeguards, The accumulated vulnerabilities of these systems allow an attacker to compromise them with relative ease.There are public demonstrations of how a laptop or a small board like a Raspberry Pi, along with the right software, is enough to take control of an ATM in just a few minutes.
They also survive in the civil sphere Tax management offices and law firms that maintain PCs with Windows 95Many organizations store documents in older formats from suites like Microsoft Works or Lotus Smartsuite. Since modern versions of Office aren't always able to open these files with complete accuracy, they prefer to maintain the original environment to access records that, due to legal requirements, must be kept for years.
The military environment is not free from its legacy either. Documentation has been made. missile control systems and defense platforms that still use Windows 95 or Windows 98Because the software that governs those devices was developed specifically for those versions. Migrating would require recertifying weapons and protocols, with a cost and risk that agencies are not always willing to assume.
Even large institutions like the Pentagon have admitted that For years a significant portion of their computers ran on Windows XP or earlier versions.Although efforts have been made to migrate most systems to newer versions, a percentage of older systems remain scattered across aircraft, bases, and remote locations. Keeping them operational requires special support contracts with Microsoft, incurring high costs year after year.
The weight of legacy: COBOL, FORTRAN and custom software
Windows 95 is not an isolated case; It is part of an ecosystem of legacy technologies that continue to support key sectorsLanguages like COBOL and FORTRAN remain fundamental in banking, insurance, and academic settings. It's not that more modern alternatives don't exist; it's that migrating to them carries real risks of breaking systems upon which millions of daily transactions depend.
In many organizations, the software that controls critical processes was written decades ago by teams that no longer exist. The documentation is sparse, the code is complex, and often only a few people truly understand how it works.Touching something without fully understanding its implications can trigger silent errors that are discovered when it is already too late.
Furthermore, much of this software is directly connected to specific hardware: control cards, industrial buses, peripherals with proprietary protocolsUpdating the operating system involves verifying that each of these components will continue to function the same, something that can rarely be guaranteed without a massive deployment of tests, simulations, and replacement equipment.
Security risks: when technical stability clashes with cybersecurity
From a cybersecurity perspective, Using unsupported systems like Windows 95 is a high-risk sportThis system stopped receiving security updates in 2001, and since then multiple vulnerabilities have been discovered that will never be officially fixed.
If a computer running Windows 95 connects to the Internet, It can be identified and attacked relatively easily by cybercriminalsFrom taking control of the computer to installing ransomware or using it as part of a botnet, the possibilities are vast. Even without a direct network connection, an attacker with physical access to the computer has a significant advantage over more robust, modern systems.
Therefore, most infrastructures that continue to use these systems resort to a drastic but effective measure: They completely isolate them from the internet and keep them on closed networks.Since they are not exposed to the outside world, many attack vectors disappear, and the main risk becomes hardware failure or human error, not remote hacking.
That doesn't mean there are no risks; they're just of a different nature. Hard drives decades old, worn-out power supplies, motherboards with aging components…all of this increases the likelihood of a physical failure at the worst possible moment. And finding compatible replacement parts becomes more difficult year after year, making repairs more expensive and slower.
Why aren't they being updated: costs, downtime, and fear of breaking something?
With all these dangers on the table, it's logical to ask: Why aren't all these teams being replaced after so much time? The answer blends economics, technique, and, in many cases, pure risk management.
The first reason is the direct cost. In industries such as agriculture, aeronautics, or rail, Upgrading a key machine can be equivalent to the price of a home or more.And we're not just talking about buying the new system, but about stopping production, reconfiguring processes, and accepting weeks or months of partial inactivity.
The second reason is indirect cost: train all staff, recertify processes, pass audits and comply with regulationsIn critical infrastructure, every change must be documented and justified to regulators, making any upgrade a complex and lengthy project.
The third reason is the fear of breaking something that's currently working. Many IT and operations managers prefer maintaining a familiar environment, even if outdated, versus embarking on a migration that may uncover dormant problemsIf the current system has gone years without serious failures and a lot has been invested in surrounding it with containment measures, the temptation to leave it as it is is great.
In the public sector, limited budgets and political priorities also come into play. Upgrading a critical system can compete with other, more visible needs.This delays or halts necessary projects. As a result, obsolete technologies end up being dragged out for decades.
This whole mosaic of Swedish trains, German farms, observatories, ATMs, and air traffic control centers demonstrates that Windows 95 and other veteran systems remain the silent link in many infrastructuresIts continued presence is due not so much to nostalgia as to a mix of costs, risks, certifications, and pure operational prudence.
The key, for any organization that still depends on them, is to find a balance between that hard-won stability and the unavoidable need to modernize in phases and revive old applications, before the next breakdown, or the next impossible patch, turns a manageable problem into a real headache. Share the information and more users will learn all about this story.