“Your Windows License Will Expire Soon”: Why It Appears and How to Fix It

“Your Windows license will expire soon” appears when Windows is activated by a time-limited method rather than a permanent retail or OEM licence. The usual causes are volume (KMS) activation, an evaluation edition or an Insider Preview build. On a work PC, contact IT; on a personal PC, install a genuine key for your edition so activation becomes permanent.

Why does “Your Windows license will expire soon” appear?

The warning appears because Windows was activated with a licence that has an end date. Microsoft’s activation errors page notes it can appear when a volume licence client is installed, as used by large organisations. Evaluation editions and Insider Preview builds produce similar countdown warnings for the same reason: they were never permanent licences.

Ordinary consumer licences do not do this. Microsoft’s documentation states that MAK and retail activation are perpetual, and OEM activation behaves the same way, so a PC activated with one of those should never show an expiry countdown.

Microsoft’s KMS activation planning documentation explains that KMS activations are valid for 180 days and that clients try to renew every seven days. A PC that stays off the organisation’s network for months therefore drifts towards expiry.

How do you find what’s causing the warning?

Open Command Prompt and run slmgr /dli to see the licence channel, then slmgr /xpr to see the expiry date. A channel of VOLUME_KMSCLIENT means KMS activation; an edition name containing “Evaluation” means a trial; a build number shown by winver that is newer than public releases suggests an Insider build.

1. Press Start, type cmd and open Command Prompt.
2. Run slmgr /dli and read the Description line.
3. Run slmgr /xpr. A permanent licence reports that the machine is permanently activated; a KMS or trial licence shows a date.
4. Run winver to see the edition name and build number.
5. Check Settings > System > Activation for the edition and any message about your organisation.

All of these commands are documented in Microsoft’s Slmgr.vbs options reference. For a broader walkthrough of status checks, see our guide on how to check if Windows 11 is activated.

What if it’s a work or school PC?

If the PC belongs to an employer or school, do not change the product key. KMS activation is managed centrally, and the warning usually means the PC has not reached the organisation’s KMS host recently. Connect to the office network or VPN for a while, or ask IT to renew activation for you.

Replacing the key on a managed PC can break compliance reporting and may be against your organisation’s IT policy. A short connection to the right network normally renews the 180-day period without any action from you.

How do you fix “your Windows license will expire soon” on a personal PC?

On a personal PC, a KMS activation means Windows was never permanently licensed. The fix is to clear any KMS host setting, install a genuine retail or OEM key for the same edition, and activate online. Once slmgr /xpr reports permanent activation, the warning will not return.

How does a home PC end up on KMS? The common routes are a second-hand or refurbished computer set up from a corporate image, a seller who supplied a pre-activated installation, or an unofficial activation tool. Unofficial activators are unsafe and breach Microsoft’s licence terms, and some leave scheduled tasks or altered system files behind, so run a full Microsoft Defender scan after fixing activation.

1. Back up your files in case you decide a clean install is the better option.
2. Open an elevated Command Prompt by right-clicking Command Prompt and choosing Run as administrator.
3. Clear any KMS host setting with slmgr /ckms, which removes a manually set KMS host name.
4. Install your genuine key with slmgr /ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX, or use Settings > System > Activation > Change product key.
5. Activate online with slmgr /ato.
6. Confirm the result with slmgr /xpr; it should report permanent activation.
7. Scan the PC with Microsoft Defender’s full scan if the activation history is unknown.

Edition matters. A Pro key activates a Pro installation, but it cannot convert Windows 11 Enterprise into Pro. If winver shows Enterprise and you are not part of an organisation, a clean install of Home or Pro is the tidiest route. If you have a Home licence but Pro is installed, either reinstall Home or buy a Home to Pro upgrade.

If the warning has already run out and Windows now shows the desktop watermark, the same steps apply; our guide to removing the Activate Windows watermark covers what changes once activation lapses.

What if you’re running an evaluation edition?

Windows 11 Enterprise Evaluation runs for 90 days. According to Microsoft’s Evaluation Center, when it expires the desktop background turns black, a not-genuine notification persists and the PC shuts down every hour. Microsoft also notes you cannot uninstall it to return to your previous Windows version.

Plan for a clean install of a licensed edition, such as Windows 11 Pro, before the trial ends. Back up your data, create installation media, install the edition your key covers and activate it. Do not rely on resetting timers: evaluation software is meant for testing, not everyday use.

What about Windows Insider Preview builds?

Insider Preview builds carry their own expiry date, and Windows warns as that date approaches with messages such as “This build of Windows will expire soon”. The fix is not a new key but a newer build: install the latest flight from Windows Update, or leave the Insider Program and clean install a public release.

Your licence still matters on Insider builds. A PC with a genuine Windows 11 licence stays activated when you move back to a stable release of the same edition.

Frequently asked questions

What happens when my Windows license expires?

For KMS activations, Windows becomes unactivated: the “Activate Windows” watermark appears and personalisation settings lock, but your files and apps remain. Evaluation editions are stricter, with a black desktop and hourly shutdowns. Nothing is deleted in either case, and activation can be restored with a valid licence.

Is “Your Windows license will expire soon” a scam?

The genuine message comes from Windows itself, appears in a system notification or the Activation page, and never asks you to call a number. Pop-ups in a web browser that claim your licence is expiring and show a phone number are tech-support scams. Close the browser tab and check Settings instead.

Can I just ignore the expiry warning?

You can for a while, but the underlying issue will not fix itself on a personal PC. Once a KMS activation lapses, Windows becomes unactivated. On a work PC, reconnecting to the organisation’s network usually renews it. On a home PC, installing a genuine key is the lasting solution.

Why does slmgr /xpr show an expiry date on my new PC?

A new consumer PC should show permanent activation. An expiry date suggests it was set up with a volume (KMS) or evaluation image, which sometimes happens with refurbished or imported machines. Contact the seller, who should provide a proper licence, or install a genuine key for the edition yourself.

Does this warning have anything to do with Windows 10 end of support?

No. Windows 10 support ended on 14 October 2025, but that affects security updates, not activation. A Windows 10 PC with a retail or OEM licence stays activated. If you are still on Windows 10, see our page on the Windows 10 ESU extension for update options.

Can I extend a Windows evaluation period?

Not in any way intended for everyday use. Evaluation editions are designed for 90 days of testing, and Microsoft does not offer a supported conversion of Windows 11 Enterprise Evaluation to a full licence. The practical route is a clean install of a licensed edition with a genuine key.

The bottom line

“Your Windows license will expire soon” means your activation has an end date. On a managed PC, let IT handle it; on your own PC, replace KMS or trial activation with a genuine key for the same edition. If a key bought from us will not activate, our Help & Support Centre can help.

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