Extended Security Updates buy you time, and the price doubles every year. Work out what staying on Windows 10 actually costs against replacing the machines — and when the decision stops being yours to make.
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to stay on ESU
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to move now
1. Your devices
Passes the compatibility check as it stands.
TPM or Secure Boot switched off in BIOS. Free to fix — see below.
ESU is cumulative — enrolling late means paying for the years you skipped.
Including the firmware change where needed.
ESU pricing per device per year
Microsoft prices ESU in US dollars and it doubles each year. These are indicative sterling figures — replace them with your CSP quote.
2. Where you are on the clock
3. Three ways forward
Stay on ESU, replace in 2028 Move everything now Phase it — upgrade now, replace over two years
4. Before you buy anything
5. What ESU does and does not do
Most estates have fewer genuinely incompatible machines than they think
Hamilton Group audits what you actually have, switches on the firmware settings that make half the "incompatible" list compatible, and phases the rest so it never lands as one bill. Book a free device review.
Planning estimates, not a quotation. Microsoft sets ESU pricing in US dollars, revises programme terms from time to time, and prices differ between commercial, education and cloud-hosted scenarios — devices accessed through Windows 365 or Azure Virtual Desktop have received ESU at no extra cost. Confirm current pricing, eligibility and dates with your CSP or Microsoft before committing. Device costs exclude VAT and any software licensing.