One signed Windows executable. No installer, no .NET prerequisite hunt on Win 10/11, no bundled garbage. Start the 7-day trial immediately — no account required until you decide to buy.
Download TuneBit.exeWindows shows a SmartScreen warning the first time you run any new app, and a UAC prompt every time TuneBit launches because it needs administrator rights to repair Windows. Here's exactly what each looks like, why it's there, and how to verify it's the real TuneBit.
The first time you double-click TuneBit.exe, Windows Defender SmartScreen shows a blue dialog reading “Windows protected your PC” with a Don't run button. This is intentional — SmartScreen flags every new file the operating system hasn't built up a reputation score for yet, regardless of who signed it.
To run TuneBit anyway:
TuneBit.exe and Publisher: Paige Julianne Sullivanhttps://dist.tunebit.app/TuneBit.exe and try again.Paige Julianne Sullivan, click Run anyway. You only need to do this once; SmartScreen remembers the decision for future launches.SmartScreen's reputation score is per-binary, so this warning typically reappears after each update for a few days until enough installs accrue. That's normal.
TuneBit.exePaige Julianne Sullivan
TuneBit repairs the operating system, so it needs administrator rights. Every time you launch it, Windows shows a User Account Control prompt — the blue dialog asking “Do you want to allow this app to make changes to your device?”
That blue band at the top of the UAC dialog is your every-launch signature check. It reads:
Paige Julianne SullivanIf the band is yellow, the publisher line is missing, or the publisher reads anything other than Paige Julianne Sullivan, click No. Something has tampered with the binary or replaced it.
The signature is renewed on every release via Azure Trusted Signing — the same code-signing service Microsoft itself uses for first-party tooling. Auto-updates are also signed; the embedded auto-updater fetches both VERSION and the new TuneBit.exe from https://dist.tunebit.app/ over HTTPS.
If you want to inspect the signature without launching TuneBit (or if your environment requires sign-off before an executable is approved on a fleet), Windows exposes the full certificate chain through file properties:
TuneBit.exe in File Explorer and choose PropertiesPaige Julianne Sullivan and click DetailsFor scripted verification on a fleet, PowerShell's Get-AuthenticodeSignature cmdlet returns the same data:
PS> Get-AuthenticodeSignature .\TuneBit.exe | Format-List Status, SignerCertificate
Status : Valid
SignerCertificate : [Subject]
CN=Paige Julianne Sullivan, O=Paige Julianne Sullivan, ...
Anything other than Status: Valid with the correct subject means the binary has been altered after signing — treat it as untrusted and re-download.
Signature list
| Name of signer | Digest algorithm | Timestamp |
|---|---|---|
| Paige Julianne Sullivan | sha256 | Friday, May 9, 2026 11:52:14 AM |
✔ This digital signature is OK.
Ready to run. .NET Framework 4.8 ships with Windows; nothing to install. Server SKUs aren't officially supported but most modules work.
Needs .NET Framework 4.8 installed first — see the setup guide.
TuneBit re-launches itself elevated via UAC; you don't need to right-click → "Run as admin" first. Headless command-line modes need to be invoked from an elevated context.
~50 MB free disk. No internet required for any tool except license validation (3-day offline grace) and optional VirusTotal lookups.
Code signing is only one of four guarantees TuneBit makes. Read “Is it safe?” for the complete posture: signing, permission prompts, telemetry stance, and the automatic backups TuneBit takes before changing anything.