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What is the Registry?
The Registry is Windows' central settings database. Every program you install writes entries into it. When programs are uninstalled — especially by careless uninstallers — they often leave entries behind that point to files and features that no longer exist. These broken references rarely crash your PC, but they can cause annoying side effects: error pop-ups at startup, File Explorer stutter when right-clicking, or the generic-icon issue in the Start menu.
What it scans for
- Missing Shared DLLs — references to library files that no longer exist on disk.
- Unused File Extensions — orphaned
.ext entries with no associated program.
- Orphaned COM/ActiveX — class IDs pointing to uninstalled components.
- Broken App Paths — the
App Paths shortcuts used by "Run" dialog, pointing to missing programs.
- Stale Installer References — Windows Installer (MSI) records for packages no longer present.
- Missing Fonts — font entries with no matching font file.
- Obsolete Startup Entries — autorun entries pointing to deleted executables.
- Broken Shortcuts — Start menu and desktop
.lnk files that target nothing.
How to use it
- Go to Clean → Registry Scanner.
- Choose which categories to scan (all are selected by default — that's fine).
- Click Scan. A progress bar fills as each category is checked.
- Review the results in the list. Each entry shows the registry path and why TuneBit flagged it.
- Untick anything you want to leave alone. (When in doubt, leave it alone.)
- Click Clean. TuneBit automatically creates a backup before removing anything. The log panel records the backup file's location.
If something goes wrong
The automatic backup is a .reg file saved to your TuneBit data folder. To restore it: double-click the .reg file and confirm the prompt. Windows will re-import the removed entries exactly as they were.
Realistic expectations: Cleaning the registry does not meaningfully speed up a modern PC. The reason to use this tool is correctness — making broken entries go away so error messages and shell glitches stop appearing. Don't expect a speed boost.
Ignore dramatic claims from other "registry cleaners." Aggressive registry cleaners have caused real damage over the years. TuneBit's scanner is deliberately conservative — it only removes entries with clear evidence of being orphaned. Even so, always review before clicking Clean, and keep the backup file somewhere safe for at least a few weeks after running it.