# NousResearch/hermes-agent · Windows default browser detection fix for 25H2

## Open now

- Nothing open on GitHub.

These issues and PRs address a bug where default browser detection on Windows 11 25H2 (build 26200+) fails because the OS no longer updates the UserChoice registry key previously relied upon. The work focuses on reading the effective HTTPS handler through an alternative method to correctly resolve the default browser.

## TL;DR

- 4 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 2 PR(s) closed without merging.
- A fix was merged to main in PR #134428. Verify it addresses your case.
- **Recommended:** read PR #134428 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `resolved` · deciding PR(s): `pr-134428`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.50`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Closed / duplicate issues

- #107854: \[Bug\]\[Windows 11 25H2 / build 26200\] Real-profile detection false-negative: \`_detect_default_windows()\` reads a \`UserChoice\` key the OS no longer updates

## Prior & competing PRs

- **#134428: Windows 11 25H2: real-profile browsing and the updater window find the default browser (#107854, salvage #106971)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `contributors/emails/[redacted:email]`, `hermes_cli/browser_connect.py`, `scripts/desktop-update/windows.ps1`, `tests/hermes_cli/test_browser_connect_default_chromium.py`
- **#107855: fix(browser): resolve Windows default via the effective https handler**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `5419d869bbe`, `#134428`, `#107854`
- **#125814: Fix Windows real-profile default browser resolution**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `5419d869bbe`, `#134428`, `#107854`

## Fix status

- Merged to main in PR #134428 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-10-07`.
- Subsystem: `hermes_cli`