Quick Answer
studio-one.exe is safe. PreSonus Studio One is a legitimate DAW installed on your PC, using multiple processes for the audio engine, GUI, and plugin hosts to maintain stability during complex productions.
Is it a Virus?
✔ NO - Safe
Must be in Program Files\PreSonus\Studio One 6\StudioOne.exe
Warning
Many processes are normal
Each track, plugin, and audio engine component may run in its own process
Can I Disable?
✔ YES
Close Studio One to stop all related processes; you can disable startup if needed
What is studio-one.exe?
Studio One is a professional digital audio workstation from PreSonus designed for recording, editing, mixing, and mastering music and sound. It runs as a multi‑process application on Windows and macOS, separating the audio engine, GUI, and plugin hosts to improve reliability during complex sessions. Projects, tracks, and plugins are managed within a single project environment.
Studio One uses a dedicated audio engine separate from the user interface and plugin hosts. This separation reduces latency, enhances stability, and isolates failure in one component from affecting the entire session, with VSTs loaded per project.
Quick Fact: Studio One pioneered integrated hardware integration and an intuitive drag-and-drop workflow, helping producers assemble tracks quickly.
Types of Studio One Processes
- Main GUI Process: User interface and project management (1 instance)
- Audio Engine: Real-time audio processing and playback
- Plugin Host: VST/VST3/AAX plugin loading per project
- MIDI/Instrument Engine: MIDI routing and software instrument handling
- Background Tasks: Auto-save, file indexing, and updates in background
- Driver Bridge: Audio driver management and device polling
Is studio-one.exe Safe?
Yes, studio-one.exe is safe when it's the legitimate file from PreSonus downloaded from official sources (presonus.com or PreSonus Central).
Is studio-one.exe a Virus or Malware?
The real studio-one.exe is NOT a virus. However, malware sometimes disguises itself with similar names; verify location and signatures.
How to Tell if studio-one.exe is Legitimate or Malware
- File Location:: Must be in
C:\Program Files\PreSonus\Studio One 6\StudioOne.exe or C:\Program Files (x86)\PreSonus\Studio One 6\StudioOne.exe.
- Digital Signature:: Right-click StudioOne.exe → Properties → Digital Signatures. Should show "PreSonus Audio Electronics, Inc.".
- Resource Usage:: Normal usage is 2-15% CPU and 100-600 MB memory per instance. Unusually high or persistent usage is suspicious.
- Behavior:: Studio One should launch with the app and not demonstrate unusual background behavior or network activity.
Red Flags: If studio-one.exe is located in Temp, AppData\Local or System32 folders, runs without opening Studio One, lacks a valid signature, or uses resources constantly, scan with antivirus. Beware of similarly named files like "studio-one.exe" from untrusted sources.
Why Is studio-one.exe Running on My PC?
Studio One starts its audio engine and UI when you launch a project or when Windows detects an audio driver or device being active.
Reasons it's running:
- Active Project or Recording: You're actively recording or editing a project; Studio One loads the audio engine, instruments, and effects to support real-time playback.
- Background Audio Engine: The engine remains active to handle low-latency monitoring and live playback even when not actively recording.
- Startup/Ready State: Studio One may launch auxiliary components at startup to provide quick project access and plugin scanning readiness.
- VST/VST3 Scanning: Upon launching or adding new plugins, Studio One scans and loads VST/VST3 plugins which can spawn additional processes temporarily.
- Driver and Device Monitoring: Active audio interfaces, MIDI devices, or drivers keep Studio One’s device bridge and monitoring services running.
Can I Disable or Remove studio-one.exe?
Yes, you can disable studio-one.exe. It's safe to close Studio One when not in use, and you can uninstall it completely if you prefer a different DAW.
How to Stop studio-one.exe
- Close Studio One: Use File → Close or click the X to shut down the active project, then quit the application.
- End Process: Open Windows Task Manager (Ctrl+Shift+Esc), find studio-one.exe, right-click → End Task.
- Prevent Startup: Task Manager → Startup tab → Disable Studio One
- Disable Background Tasks: In Studio One, go to Preferences → General and turn off unnecessary background checks or auto-save during idle moments.
- Repair or Update: If issues persist, run a repair via Programs and Features or install the latest Studio One update from presonus.com
How to Uninstall Studio One
- ✔ Windows Settings → Apps → Studio One → Uninstall
- ✔ Control Panel → Programs → Uninstall a program → Studio One → Uninstall
- ✔ If licensing remains, open PreSonus Central to deactivate and reauthorize on another machine
Common Problems: Audio or Performance
If studio-one.exe is misbehaving or delivering audio issues, try these targeted fixes before reinstalling.
Common Causes & Solutions
- Buffer size too small: Increase the Audio Device Buffer in Studio One → Options → Audio Setup. Use ASIO drivers when available for lower latency.
- Too many plugins or plugins consuming CPU: Freeze or bounce tracks with heavy FX, disable unused plugins, or increase Power Plan efficiency and disable background services.
- Sample rate mismatch: Ensure project sample rate matches your audio interface (e.g., 44100 Hz or 48000 Hz) and that the interface supports the chosen rate.
- Outdated plugins or incompatibilities: Update plugins to the latest version and rescan in Studio One; remove or sandbox incompatible VSTs.
- Insufficient RAM or disk I/O bottlenecks: Close other applications, use an SSD for project files, and increase RAM if possible; optimize disk performance.
- Driver issues or USB device conflicts: Reconnect audio/MIDI devices, update drivers, and try a different USB port or a dedicated audio interface.
Quick Fixes:
1. Quick Fixes:
2. 1. Restart Studio One and your audio interface
3. Increase buffer size in Preferences → Audio Setup
4. Disable unnecessary plugins or freeze tracks
5. Update Studio One to the latest version
6. Rescan and validate VST plugins in Studio One
Frequently Asked Questions
Is studio-one.exe a virus?
No, the legitimate studio-one.exe from PreSonus is not a virus. Verify the file location: C:\Program Files\PreSonus\Studio One 6\StudioOne.exe and ensure a valid signature from 'PreSonus Audio Electronics, Inc.'.
Why is Studio One using so much CPU?
High CPU can be caused by numerous CPU-heavy plugins, many tracks, or real-time monitoring. Identify culprits with Studio One's performance meters, freeze tracks, and update plugins to 64-bit compatible versions.
Can I uninstall Studio One?
Yes. Use Windows Settings → Apps → Studio One → Uninstall. Your projects remain on disk unless you move them; licenses can be managed via PreSonus Central.
Does Studio One require internet connection to run?
Studio One runs offline, but the license and updates may require internet access. You may need an internet connection to activate or reauthorize your license.
How do I fix audio dropouts in Studio One?
Check buffer size and sample rate, update audio drivers, reduce plugin load, and ensure your interface supports the chosen configuration. Reboot and re-check connections if issues persist.
Where are Studio One project files stored?
By default, Studio One saves projects in your user folder under Documents\Studio One Projects (you can customize this in Preferences → File Locations).