c8ff952bbb
- User profile, feedback preferences - Project state and architecture decisions - Technical findings (UCPD, Win11 compat, code analysis) - Reference pointers to colleague specs Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
57 lines
3 KiB
Markdown
57 lines
3 KiB
Markdown
---
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name: Technical findings from deep code analysis and research (2026-04-15)
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description: Detailed technical analysis results - Win11 compatibility issues, UCPD driver, code quality assessment, and modernization opportunities
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type: project
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---
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## Code quality assessment (all scripts in windows-deployment-new/scripts/)
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- Overall: solid, production-ready for Win10/11 22H2
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- 3-level registry fallback in 03-system-registry.ps1: direct write → ACL fix (SeTakeOwnershipPrivilege) → SYSTEM scheduled task
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- Proper hive handling: GC.Collect + WaitForPendingFinalizers + 500ms sleep before reg unload, always in finally block
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- Error handling: $ErrorActionPreference = "Continue", try/catch everywhere, WARN level for non-critical failures
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- Logging: every step to C:\Windows\Setup\Scripts\Deploy.log with color-coded console output
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## Critical issues found
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### 1. UCPD.sys (User Choice Protection Driver)
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- Kernel-mode driver since Feb 2024, v4.3 as of early 2026
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- Blocks direct registry writes to UserChoice for .pdf, .htm, .html etc.
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- Our HKCR approach works as system-wide fallback but isn't clean
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- Fix: disable UCPD service + scheduled task during deployment, set associations, re-enable
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- Or use SetUserFTA tool (~$20, kolbi.cz)
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### 2. System tray EnableAutoTray=0 broken on 24H2
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- Win11 23H2/24H2 ignores this registry key
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- Icon stream cache clearing is a workaround but not 100%
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- No reliable registry-only solution exists for 24H2
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### 3. OneDrive removal too aggressive
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- 03-system-registry.ps1 lines 244-273: uninstalls + deletes OneDriveSetup.exe
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- 04-default-profile.ps1 lines 240-261: removes RunOnce keys + Explorer namespace
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- Must remove these blocks entirely
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### 4. Edge policies incomplete
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- Currently only: HideFirstRunExperience, CreateDesktopShortcutDefault
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- Need to add: BrowserSignin=0, CopilotPageContext=0, NewTabPageContentEnabled=0, StandaloneHubsSidebarEnabled=0, ShowRecommendationsEnabled=0, DefaultBrowserSettingsCampaignEnabled=0, and ~10 more
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### 5. ConfigureStartPins applyOnce
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- New in 24H2 (KB5062660): {"pinnedList":[], "applyOnce": true}
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- Applies layout once, then users can customize
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- Better than our current approach (XML lock + UnlockStartLayout task)
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## Win10/Win11 compatibility matrix
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- All core registry keys work on both versions
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- Win11-specific keys (TaskbarAl, ShowCopilotButton, TaskbarDa, TaskbarMn) harmlessly create empty keys on Win10
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- Scripts handle version differences through graceful degradation
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## Config.json issues
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- desktopInfo settings (position, fontSize, color) are defined but ignored by 07-desktop-info.ps1
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- deployment.locale is not used anywhere
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- Software list has only 3 packages (TODO in SPEC)
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## Tools landscape (researched 2026-04-15)
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- Chris Titus WinUtil: PS-based, `irm christitus.com/win | iex`, has Win11 Creator tab
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- Win11Debloat (Raphire): got GUI in Feb 2026, configurable via Apps.json
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- Sophia Script: 150+ tweaks, most granular but slower
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- Go binary advantages: bypasses execution policy, single file, no dependencies, cross-compile from macOS
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- Charmbracelet stack (bubbletea/huh/lipgloss): best for TUI forms in Go
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