Stale Electron Updater Packages
Many Windows desktop apps built with Electron use Squirrel.Windows or electron-updater to download release .nupkg packages, differential update fragments, and installer payloads into root-level folders under %LocalAppData% before applying an update. When those packages are left behind after a successful install or an abandoned update, they become stale updater leftovers that serve no purpose but still consume disk space; Kudu removes only old root-level updater packages older than 14 days, leaving pending updates, nested files, and your app data, settings, accounts, and passwords untouched.
Why clean Stale Electron Updater Packages?
- Completed Electron app updates often leave old .nupkg and installer payloads in %LocalAppData%, so disk usage grows even though the app already launched on the newer version
- Abandoned updater downloads from a canceled or failed release attempt can leave large package files behind, which users notice as unexplained space loss on small SSDs
- Multiple retained full packages from frequent app releases create duplicate copies of old versions, making storage analyzers show Electron apps using far more space than their installed size suggests
- Stale root-level updater packages can be mistaken for active pending updates, so cleaning old files reduces confusion when users are troubleshooting why an app is not updating
- Differential update fragments that are no longer referenced after a newer release arrives provide no recovery value, yet they still occupy bandwidth-downloaded disk space that never gets reclaimed automatically
- Old updater payloads do not improve launch speed or app performance after installation, so removing them frees space without deleting messages, profiles, settings, or saved sign-ins
Cache paths Kudu targets
Windows
%LocalAppData% |
Common questions about Stale Electron Updater Packages
Download Kudu and reclaim your disk space.
Available on Windows, macOS, and Linux. No account required, no feature gates, no telemetry without consent. All cleaning targets are open source and community-auditable.