Computers are one of the few business expenses that every employee touches every day. When they run well, nobody thinks about them. When they slow down, crash, or stop getting security updates, the cost shows up in lost hours, support calls, and risk that is easy to miss until something goes wrong.
Most business owners have heard a rule of thumb: replace computers every three years, or every five. The short answer is that no major manufacturer we checked publishes either number as a recommendation. What they do publish is how long they will keep supporting a model with repairs and with drivers and firmware, the low-level software that keeps the hardware working safely with Windows. For Windows PCs, that support usually starts counting when the model is first released, so a machine bought late in a model’s run gets less of it. In our experience, a four-year cycle for laptops and a five-year cycle for desktops keeps most machines inside that support.
That distinction matters for budgeting, because a rule of thumb only tells you when to spend, while a support window tells you when a machine starts becoming a liability.
In this blog post, we will look at computer lifecyle management and what Microsoft, Apple, Dell, HP, and Lenovo publish. We'll also cover how laptops, desktops, and servers differ, and what old machines really cost. We will share a simple way to budget for replacements and explain how Techmedics helps businesses plan and buy new equipment through our IT procurement services.
Microsoft is the clearest example. Its Surface lifecycle policy covers Microsoft’s own Surface laptops and tablets released on or after January 1, 2021. Each one gets driver and firmware updates for at least six years from the date the model was first released.
The clock starts when the model launches, not when you buy it. The Surface Pro 7, for example, was released in October 2019 and stopped receiving driver and firmware updates in October 2025. A business that bought one in 2021 got about four years of its six-year support run. The same math applies today: the Surface Laptop 6 for Business was released in April 2024 and is scheduled to stop receiving these updates in April 2030, so one bought in late 2026 has about three and a half years left.
Apple does not publish a replacement cycle either, but its vintage and obsolete products policy shows where hardware support ends. Apple considers a product vintage when it stopped selling it more than five and less than seven years ago, and obsolete after seven years, at which point hardware service ends. Mac laptops may qualify for battery-only repairs for up to 10 years.
Here the clock starts when Apple stops selling the model. After about seven years, a broken Mac may not be repairable through Apple at all.
The three largest Windows PC makers sell extended warranties on business models, and the lengths on offer vary by model and region. None of them, in the documentation we reviewed, states how many years a business should keep a computer. Dell’s client security support policy, for instance, ties security fixes to a product’s support term without naming a fixed number of years.
For these brands, the reliable answer is model-specific: each maker has a warranty lookup by serial number, and that is where a refresh plan should start. As we noted in our guide to common IT equipment buying mistakes, skipping the extended warranty at purchase is one of the easiest ways to shorten a machine’s useful life.
Microsoft’s Windows lifecycle FAQ warns that a device may not be able to receive Windows updates if its hardware is incompatible, lacks current drivers, or is outside the manufacturer’s support period. Windows 11 also gets one major upgrade a year, and each one is supported for 24 months on Windows 11 Pro. For a business, that means every computer has to be able to take each year’s upgrade, and an older machine without current drivers may not.
A computer can keep running long after its maker stops supporting it, but it may eventually stop getting the security updates that keep it safe. The Windows 10 transition showed how expensive that becomes when many machines lose updates at the same time.
Laptops travel, get dropped, and run on batteries that wear down. For Windows laptops, a four-year cycle keeps most machines inside the manufacturer’s support window even if they were bought a year or two after the model launched.
Desktops sit still and are easier to repair, so many businesses keep them longer. Five years is a reasonable target, as long as the machine still receives driver, firmware, and Windows updates. Once it falls outside its support window, each extra year of use carries more risk. Firms that run demanding software, such as architecture and engineering offices using design programs, may find their workstations slow down before support ends, which can justify a shorter cycle for those machines.
Servers follow a different rhythm. Microsoft supports each Windows Server release for about ten years in total, but the hardware underneath may need attention sooner. Server replacement is typically planned around both the hardware warranty and the operating system’s end date, with help from a server management partner.
Keeping a computer an extra year can look like savings. Older machines may generate more support tickets, run current software slowly, and fail at bad times. The bigger risk is security. The Cybersecurity and Infrastructure Security Agency (CISA), the federal agency that advises organizations on cyber risk, puts the use of unsupported or end-of-life software first on its list of bad practices. CISA says the list applies to all organizations, especially those that support critical infrastructure. Once updates stop, every newly discovered flaw stays open.
Market forces can also raise the price of waiting. As we covered in our look at the forces behind PC upgrades today, tariffs and memory prices have pushed hardware costs around in ways that are hard to predict.
The easiest way to avoid a large one-time hardware bill is to spread replacements out: roughly one fifth of your computers each year on a five-year cycle, or one quarter on a four-year cycle.
An IT consulting partner can fold this rhythm into a broader annual technology budget.
Schedule a consultation with Techmedics to build a hardware refresh plan your budget can count on.
Technology challenges rarely have one-size-fits-all solutions. A consultation with Techmedics can help you better understand your options and identify practical next steps for your organization. Start with a conversation about what you're trying to accomplish and where technology may be getting in the way.
