Home office work is light computing with heavy consequences: a machine that stutters mid-call costs you credibility in a way that a slow game does not. The good news is that the fixes are cheap and the spending limit is low.
What home office work actually demands
Documents, browsers, spreadsheets, a video call and a shared drive are all memory-and-storage problems, not processor problems. Almost no office task benefits from a faster processor or a better graphics card. A five-year-old office machine with an SSD and enough memory will outperform a new mid-range machine with a mechanical drive.
Upgrade 1 — The SSD (if you do not already have one)
This is the whole ballgame on an older machine. Boot in seconds, files open immediately, Windows updates stop taking an hour.
- A 500 GB SATA SSD is £35–£50 and fits almost any desktop from the last fifteen years.
- On a laptop, an M.2 drive is usually a single screw away. Check the model before buying — the SSD guide covers form factors and cloning.
Upgrade 2 — Memory to 16 GB
Teams, a browser with twenty tabs, Excel with a large sheet and a PDF viewer will use 8 GB and start swapping. Swapping is the "everything pauses when I click" feeling.
- 16 GB total is the target. If you already have 16 GB, stop — this is not your bottleneck.
- Matched pairs where possible. Follow the RAM guide to identify the right modules.
Upgrade 3 — The network, before any hardware
Half of "my work laptop is slow" is actually "my connection is unreliable".
- Wired beats wireless, always, for a desk that does not move. A £10 cable removes an entire category of call problems.
- If you must use Wi-Fi, check the signal at the exact spot you sit — not in the same room. A weak signal produces dropouts that look like software faults.
- Avoid powerline and cheap repeaters for calls unless there is no alternative; both add latency and jitter.
- If your router is supplied by the provider and more than five years old, that is often the single best £80 in the house.
Upgrade 4 — A second monitor
The most productive thing most home offices can buy, and it is not a computer part at all.
- Two screens cut the alt-tab tax on every document, and let you keep a call on one screen and work on the other.
- Any modern laptop or desktop drives two displays. Check the ports you have — HDMI, DisplayPort, and USB-C with display support.
- One good 24–27 inch screen beats two cheap ones. Height it so the top of the screen is at eye level.
Then: the call itself
- A better microphone does more for how you come across than a better camera. A £40 headset with a boom mic beats a laptop's built-in array in every room.
- Light in front of you, not behind you. A £15 lamp aimed at your face improves video more than a new webcam.
- A webcam only if the built-in one is genuinely poor — most recent laptops have acceptable ones.
What to skip
- Graphics cards. No office application uses one. A dedicated card is money spent on nothing.
- "Office" optimiser software, registry cleaners and driver updaters. They add background processes and risk.
- A new computer when an SSD and memory would do. An eight-year-old desktop with an SSD and 16 GB is a perfectly good office machine.
- Upgrading a sealed mini office box. Many small corporate desktops use proprietary power supplies and non-standard shapes. Check before buying parts; a used standard-format refurb is often cheaper than fighting one.
When replacing beats upgrading
Replace rather than upgrade when the machine is more than eight years old, when it cannot run a supported Windows version, or when the upgrade total passes about a third of a new machine. A mid-range refurbished business desktop with an SSD and 16 GB is usually the pragmatic answer for office work — and it will be quieter and smaller than what it replaces.
The checklist, in order
SSD → memory to 16 GB → wired network → second monitor → microphone and light → and stop there. That is a complete home office, and it costs less than one mid-range graphics card.