# When to replace hardware instead of repairing it

> A cost-and-support way to decide repair versus replace, using Windows lifecycle dates rather than gut feeling.

**Tested on**

- Build: 26300.9457 / 26100.33650
- Edition: Pro (26H2) / Server
- Architecture: x64
- Evidence: E1
- Verified: 2026-10-29

## The short answer

Replace when **two of these three** are true:

1. **The OS is out of support** (or will be before the next replacement cycle).
2. **A repair costs more than a third of a replacement.**
3. **The workload no longer fits** (RAM ceiling, no NVMe, no TPM 2.0).

Repair when the machine is supported, the fault is a single known part, and the rest of the platform still meets your needs.

## Support status comes first

Hardware does not fail on a schedule; software support does. Microsoft publishes lifecycle dates, and they decide more than the spec sheet:

- Windows 10 is past end of support — a Windows 10 machine is a compatibility test box, not a daily driver.
- Windows Server 2022 mainstream support ends 2026-10-13; 2019 and 2016 are extended-only.
- Windows 11 requires TPM 2.0, Secure Boot and a supported CPU — older platforms cannot be upgraded at all.

A machine that cannot run a supported OS has a hard deadline regardless of how fast it feels.

## The repair-versus-replace arithmetic

| Repair | Compare against |
|---|---|
| Battery (laptop) | 10–20% of a replacement — usually worth it |
| SSD | 10–15% — worth it, and it makes the machine feel new |
| Keyboard/screen | 20–40% — depends on the rest of the machine |
| Motherboard/GPU | 50%+ — replace |
| Data recovery | separate decision; back up first |

Add the **time cost**: a repair that takes two weeks without a machine is often more expensive than the part.

## Upgrade paths before replacement

These extend life cheaply:

- **RAM to the platform max** — the single most effective upgrade for a 4–8GB machine.
- **SATA/NVMe SSD** — turns a 2016 laptop into something usable.
- **Battery** — restores the "laptop" part of a laptop.
- **Thermal paste + cleaning** — recovers lost performance and noise.

These do **not** extend life:

- An external GPU on an old platform (bottlenecked).
- More cores via a CPU swap on a dead socket.
- Windows "debloat" tools to compensate for 4GB RAM.

## The TPM/Secure Boot cliff

Many otherwise-fine machines from 2015–2017 lack TPM 2.0 or a supported CPU for Windows 11. That makes them:

- fine as a Linux box or a lab machine;
- unsuitable as a machine you depend on for supported Windows work.

> **Caution: Do not plan around bypasses**
>
> Tools that skip the Windows 11 hardware checks produce an unsupported configuration. It works until it does not, and it is not a plan for a machine you rely on.

## A decision table

| Situation | Decision |
|---|---|
| < 3 years old, one part failed, in support | repair |
| 4–6 years old, SSD/battery tired, OS supported | upgrade (SSD/RAM/battery) |
| 6+ years, OS out of support | replace |
| Cannot run a supported OS at all | replace or repurpose |
| Repair > 40% of replacement cost | replace |
| Only machine, holds critical data, failing intermittently | replace first, diagnose later |

## What to do with the old machine

- **Repurpose** as a lab/NAS/backup target — see [retiring and wiping](https://winbook.fyi/en/hardware/diag/retire-wipe/).
- **Donate** only after a proper wipe.
- **Recycle** through an e-waste channel; do not bin a battery.

## Related

- [Hardware requirements by OS version](https://winbook.fyi/en/hardware/buy/os-hardware-matrix/)
- [Retiring and wiping drives](https://winbook.fyi/en/hardware/diag/retire-wipe/)
- [Budget tiers](https://winbook.fyi/en/hardware/buy/budget-tiers/)

## Lab boundary

E1. Lifecycle dates are published by Microsoft; the cost ratios are rules of thumb from repair economics, not measured data.

## Sources

- [Microsoft Learn — Product lifecycle](https://learn.microsoft.com/en-us/lifecycle/)
- [Microsoft Learn — Windows Server 2025 lifecycle](https://learn.microsoft.com/en-us/lifecycle/products/windows-server-2025)
- [Microsoft Learn — Windows 11 requirements](https://learn.microsoft.com/en-us/windows/whats-new/windows-11-requirements)

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Source: https://winbook.fyi/en/hardware/diag/lifecycle-replace/