# Windows 5.4.1 install fails "failed to match any pinned public keys"

**URL:** <https://discuss.zetetic.net/t/windows-5-4-1-install-fails-failed-to-match-any-pinned-public-keys/7267>\
**Category:** Issues\
**Created:** [September 28, 2026, 3:20pm UTC](https://discuss.zetetic.net/t/windows-5-4-1-install-fails-failed-to-match-any-pinned-public-keys/7267 "2026-09-28T15:20:12Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![noisebot](https://avatars.discourse-cdn.com/v4/letter/n/ce73a5/32.png) [@noisebot](https://discuss.zetetic.net/u/noisebot)\
**Post date:** [September 28, 2026, 3:20pm UTC](https://discuss.zetetic.net/t/windows-5-4-1-install-fails-failed-to-match-any-pinned-public-keys/7267/1 "2026-09-28T15:20:12Z")

</div>

an update notice prompted this morning, tried to run it but it fails with “Installer public key… failed to match any pinned public keys”.

The 5.4 ios update has already been installed so syncing between devices will now be broken.

---

<div class="post-metadata">

**Author:** ![dquander](https://avatars.discourse-cdn.com/v4/letter/d/8797f3/32.png) [@dquander](https://discuss.zetetic.net/u/dquander)\
**Post date:** [September 28, 2026, 4:37pm UTC](https://discuss.zetetic.net/t/windows-5-4-1-install-fails-failed-to-match-any-pinned-public-keys/7267/2 "2026-09-28T16:37:00Z")

</div>

@noisebot Hi and thanks for reporting this issue. Can you give it another try, the issue should be resolved now.

Cheers,

Don

---

<div class="post-metadata">

**Author:** ![noisebot](https://avatars.discourse-cdn.com/v4/letter/n/ce73a5/32.png) [@noisebot](https://discuss.zetetic.net/u/noisebot)\
**Post date:** [September 28, 2026, 4:52pm UTC](https://discuss.zetetic.net/t/windows-5-4-1-install-fails-failed-to-match-any-pinned-public-keys/7267/3 "2026-09-28T16:52:02Z")

</div>

yup, working now, thanks!