Fast Startup 8.1.0 for Windows 10/11 x64
Run FastStartup.exe. Portable .NET Framework 4.7.2 WPF (x64), using the Framework included with Windows 10 version 1809 and later / Windows 11. No .NET 8 runtime or network download is required to run. Lists only current-user Run string/expand-string entries and current-user Startup-folder .lnk files. Select an app, inspect the raw command/path, then explicitly Enable or Disable. A confirmation appears before a change.
Uses the adapted BCU StartupApproved binary approval core. Original Run values and shortcut files are NEVER changed or removed. Prior exact approval bytes (or absence) are flushed to %LOCALAPPDATA%/FastStartup/ChangeJournal BEFORE writing the approval. Restore changes restores the exact prior value; if there was no value it removes only the approval value created by this app. Restoring stops if the startup command, shortcut or approval has subsequently changed. Prepared journals cover interruption between backup and completion. Keep journal files for restore.
Scope: no services, system settings, RunOnce, HKLM, scheduled tasks, machine-wide startup or other users. Known protection/security names are read-only; unknown approval types/lengths/states are read-only. Unknown security programs cannot be classified perfectly; the user is responsible for understanding any selected application. No automatic optimizations or changes on refresh. No acceleration guarantee or startup-time estimate. Windows StartupApproved is an undocumented mechanism inherited from upstream; app changes affect future sign-in, and Windows/vendor policy can override it.
Theme: dark default, remembered light/dark in %LOCALAPPDATA%/FastStartup. Branding: brand.ini.
Development QA: --selftest <report.json> only creates its own HKCU Software/FastStartup/SelfTest/<random> keys and isolated temporary fixtures. Real startup keys are read before/after and hashed unchanged. Screenshot: --export-screenshot <new.png> [--theme dark|light] [--sample]. Sample mode is a clearly labeled read-only preview and cannot mutate startup state.

Slim candidate: unsigned review build. Original user-data paths and JSON journal schema are retained. Microsoft System.Text.Json 10.0.13 and its required managed dependencies are included beside the EXE; their licenses/notices are under Licenses/NuGet. Build-only reference assemblies are not runtime files.
