Quick Answer
prltools-service.exe is safe. It is the Parallels Tools service responsible for host-guest integration features such as clipboard, drag-and-drop, and shared folders.
Is it a Virus?
✔ NO - Safe
Must be in C:\Program Files\Parallels\Parallels Tools\prltools-service.exe or C:\Program Files (x86)\Parallels\Parallels Tools\prltools-service.exe
Can I Disable?
✔ YES - Can stop functionality
Disabling the service will impact Parallels Tools features like clipboard sharing, drag-and-drop, and seamless mouse integration
Is it Required for VM?
✔ YES - Required for Parallels Tools integration
Essential component for guest integration and drivers
What is prltools-service.exe?
prltools-service.exe is the Parallels Tools service that runs in Windows to provide seamless integration between the host and guest operating systems. It manages drivers, clipboard sharing, drag-and-drop, and automatic tools updates, enabling features like shared folders and time synchronization inside a VM.
This service coordinates guest-tools drivers and user-space components. It initializes at VM start, registers with Windows Services, and ensures Parallels Tools features stay active across reboots and VM sessions.
Quick Fact: Parallels Tools uses a set of services and drivers to keep guest OS features in sync with the host, including seamless mouse capture and clipboard synchronization.
Types of Parallels Tools Processes
- Service Process: Windows service managing Parallels Tools components (integration, drivers, and updates)
- Driver Process: Parallels Tools network/graphics/shared-folder drivers loaded for the guest
- Helper Process: Auxiliary executables that support clipboard and drag-and-drop coordination
- Update/Utility Process: Background updater and maintenance utilities for Parallels Tools
Is prltools-service.exe Safe?
Yes, prltools-service.exe is safe when it originates from Parallels International GmbH and resides in the proper Parallels Tools folder.
Is prltools-service.exe a Virus or Malware?
The real prltools-service.exe is NOT a virus. Malware may imitate names, so verify the path and digital signature.
How to Tell if prltools-service.exe is Legitimate or Malware
- File Location:: Must be in
C:\Program Files\Parallels\Parallels Tools\prltools-service.exe or C:\Program Files (x86)\Parallels\Parallels Tools\prltools-service.exe. Any other path is suspicious.
- Digital Signature:: Right-click the file in Windows Explorer -> Properties -> Digital Signatures. Should show "Parallels International GmbH".
- Resource Usage:: Normal usage is 2-15% CPU and 60-150 MB memory per VM session. Sustained high usage outside of VM activity is a red flag.
- Behavior:: The service should start with Parallels Tools and only run within active VMs or Parallels sessions.
Red Flags: If prltools-service.exe is outside the Parallels Tools folder (e.g., Temp or AppData), runs without Parallels Desktop, has no digital signature, or uses unusual resources constantly, scan with antivirus immediately. Be wary of similarly-named files like "prltools.exe".
Why Is prltools-service.exe Running on My PC?
prltools-service.exe starts when Parallels Tools are installed and will run as a Windows service to support integration features for any active virtual machines. It also remains active to provide ongoing device drivers and guest integrations.
Reasons it's running:
- Active VM With Parallels Tools: You have one or more VMs running and Parallels Tools components are loaded in the guest, requiring service support.
- Background Guest Integration: Clipboard, drag-and-drop, and shared folders rely on continuous service coordination.
- Startup or Auto-Start: Parallels Tools is configured to start automatically with Windows or when a VM starts.
- Driver and Service Updates: The service may run to apply driver updates or tool updates during VM sessions.
- Guest Synchronization: Time sync, file sharing, and peripheral access require the Parallels Tools service to be active.
Can I Disable or Remove prltools-service.exe?
Yes, you can disable prltools-service.exe. This will stop Parallels Tools integration features inside VMs, and you may lose shared folders, clipboard, and seamless mouse integrations.
How to Stop prltools-service.exe
- Open Services: Press Windows+R, type services.msc, and press Enter
- Find Parallels Tools Service: Scroll to 'Parallels Tools Service' (or similar) in the list
- Stop the Service: Right-click > Stop to halt the service immediately
- Set Startup Type: Double-click the service and set Startup type to Manual or Disabled
- Reboot or Re-Launch: Restart Windows or start a VM to apply changes
How to Uninstall Parallels Tools
- ✔ Windows Settings -> Apps -> Apps & Features -> Parallels Tools -> Uninstall
- ✔ Control Panel -> Programs -> Uninstall a program -> Parallels Tools -> Uninstall
- ✔ Run Parallels Desktop or VM tools installer to repair/relayout tools if needed
Common Problems: High CPU or Memory Usage
If prltools-service.exe is consuming excessive resources:
Common Causes & Solutions
- Active features in use: Clipboard sharing and shared folders can keep the service busy; disable features you don't need
- Outdated Parallels Tools: Update to the latest Parallels Tools package via Parallels Desktop
- Multiple VMs running concurrently: Close unneeded VMs or suspend some to reduce resource usage
- Broken or corrupted Tools drivers: Repair or reinstall Parallels Tools to restore drivers
- Antivirus false positives: Add exceptions for prltools-service.exe or update AV definitions
- High CPU from guest OS activities: Investigate guest processes causing high CPU and ensure tools drivers reflect changes
Quick Fixes:
1. Open Parallels Tools settings and disable unneeded features (clipboard, drag-and-drop, sharing)
2. Ensure Parallels Tools is up-to-date: Reinstall Tools from the Parallels Desktop installer
3. Reboot the host and guest VM to reset drivers
4. Limit VM workloads and track using Windows Task Manager under Services and Processes
Frequently Asked Questions
Is prltools-service.exe a virus?
Yes, the legitimate prltools-service.exe from Parallels International GmbH is not a virus. It should reside under C:\Program Files\Parallels\Parallels Tools and be signed by Parallels.
What does prltools-service.exe do?
prltools-service.exe runs as a Parallels Tools service to provide integration features for VMs. If you disable it, clipboard sharing, drag-and-drop, and shared folders may stop working.
Can I uninstall Parallels Tools?
If you no longer use Parallels Tools, you can uninstall Parallels Tools from the VM or through the Parallels Desktop installer on the host. This will remove the prltools-service along with tools.
Can I disable prltools-service.exe?
Yes, you can disable prltools-service.exe from starting with Windows via Services (services.msc). It will prevent Parallels Tools from automatically loading in VMs.
Why does prltools-service.exe run at startup?
prltools-service.exe starts when Parallels Tools are installed or when a VM starts. If you see it running while no VMs are active, it might be set to start automatically with Windows.
Why are Parallels Tools processes needed?
Parallels Tools uses a multi-process approach to support features like shared folders, clipboard, and seamless guest integration. The service coordinates drivers and UI components for VM sessions.