Hi Ejaz ahmad Jan,
I understand that the Windows expiration message can be confusing, especially if you are now unable to access Windows normally. This may be related to an expiring Windows Insider Preview build rather than a standard Windows activation issue.
Before reinstalling, could you please clarify the following?
- Can the PC still reach the Windows desktop, or is it stuck during startup?
- What is the exact expiration message displayed?
- If Windows still opens, press Windows + R, type winver, and share the Windows version and OS build shown.
- Which Insider channel is listed under Settings > Windows Update > Windows Insider Program?
- Does Settings > Windows Update offer a newer build or show an error code?
If you can still access the desktop, please first go to Settings > Windows Update and select Check for updates. Installing the latest build available for your current Insider channel may remove the expiration warning.
If Windows no longer starts, or no newer build is available, you may need to use Windows installation media to restore or reinstall Windows. Please back up important files first whenever possible, as a clean installation can remove personal files, applications, and settings.
You can refer to these official Microsoft guides:
Please share the exact message or a photo of the screen, while hiding any email address, product key, or other personal information, so we can determine whether an update, recovery, or clean installation is required. Thank you so much for your understanding.
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