Is it a Virus?
NO - Safe
Must be in C:\Program Files\GRAPHISOFT\ARCHICAD Reader\archicad-reader.exe
Can I Disable?
YES
Disabling ARCHICAD Reader will prevent quick previews and BIM data viewing for projects
Legitimate File Location?
YES - Legitimate
Must be in C:\Program Files\GRAPHISOFT\ARCHICAD Reader\archicad-reader.exe
What is archicad-reader.exe?
archicad-reader.exe is a slim, read-only viewer component provided by Graphisoft to open and inspect ARCHICAD project files without a full license. It renders 3D BIM geometry, plans, and schedules for review, collaboration, and sharing, while preserving model integrity and security.
ARCHICAD Reader uses a lightweight renderer and a dedicated viewer process to load BIM data from .pln files, streaming textures and geometry from the local cache or BIMcloud. The read-only mode prevents unintended changes to the model.
Quick Fact: ARCHICAD Reader enables stakeholders to view, measure, and comment on BIM models without altering the original project data.
Types of ARCHICAD Reader Processes
- Launcher Process: Starts the archicad-reader user interface and handles session initialization
- Viewer Renderer: Renders 3D BIM geometry and 2D drawings for viewing
- Thumbnail/Preview Generator: Generates file previews and thumbnails for rapid browsing
- BIMcloud Sync: Synchronizes view data with BIMcloud projects when connected
- Export/Snapshot Processor: Exports snapshots or prints from the viewer
- Background Tasks: Performs non-UI tasks like cache management and updates
Is archicad-reader.exe Safe?
Yes, archicad-reader.exe is safe when it's the legitimate file from Graphisoft downloaded from official sources (graphisoft.com or manufacturer distribution).
Is archicad-reader.exe a Virus or Malware?
The real archicad-reader.exe is NOT a virus. However, malware can imitate names to trick users.
How to Tell if archicad-reader.exe is Legitimate or Malware
- File Location:: Must be in
C:\Program Files\GRAPHISOFT\ARCHICAD Reader\archicad-reader.exe or C:\Program Files (x86)\GRAPHISOFT\ARCHICAD Reader\archicad-reader.exe. Any archicad-reader.exe elsewhere is suspicious.
- Digital Signature:: Right-click the file in Explorer → Properties → Digital Signatures. Should show Graphisoft SE as the signer.
- Resource Usage:: Normal usage is 3-20% CPU per process, 60-240 MB total memory. Extremely high usage when idle is suspicious.
- Behavior:: ARCHICAD Reader should run when you open ARCHICAD projects or preview files. Multiple instances when idle may indicate a masquerade.
Red Flags: If archicad-reader.exe is located in unusual folders (like Temp, AppData\Roaming, or System32), runs when Archicad isn't open, has no digital signature, or uses excessive resources constantly, scan your system with antivirus software immediately. Beware of similarly-named files like "archicad-reader.exe" in untrusted paths.
Why Is archicad-reader.exe Running on My PC?
archicad-reader.exe runs when you view ARCHICAD project files or when the viewer is configured to monitor BIMcloud updates. It may stay active for quick previews or background synchronization.
Reasons it's running:
- Active Project Viewing: You're actively viewing an ARCHICAD project, and the reader loads and renders the model for inspection
- Background BIMcloud Sync: The viewer synchronizes recent changes or metadata with BIMcloud when connected
- Thumbnail and Preview Generation: Archicad Reader generates previews for files in folders or project libraries
- File Association and Open With: Windows file associations allow quick opening from explorer, keeping the app ready
- Startup or Deployment Configuration: In managed environments, archicad-reader may be set to start with Windows or deployment packs
Can I Disable or Remove archicad-reader.exe?
Yes, you can disable archicad-reader.exe. It will stop quick previews and BIMcloud-related viewing, but you can re-enable when needed. Uninstalling removes the viewer completely.
How to Stop archicad-reader.exe
- End Individual Sessions: Close preview windows or exit ARCHICAD Reader from the UI
- Close Background Tasks: In Task Manager, end archicad-reader.exe or BIMcloud sync tasks
- Prevent Startup: Task Manager → Startup tab → Disable ARCHICAD Reader
- Manage BIMcloud Sync: In ARCHICAD Reader settings, turn off BIMcloud sync or background updates
- Uninstall: Windows Settings → Apps → Archicad Reader → Uninstall
How to Uninstall Archicad Reader
- ✔ Windows Settings -> Apps -> Apps & Features -> Archicad Reader -> Uninstall
- ✔ Control Panel -> Programs -> Uninstall a program -> Archicad Reader -> Uninstall
- ✔ Optionally remove related Graphisoft components from the same installer package
Common Problems: High CPU or Memory Usage
If archicad-reader.exe is consuming excessive resources:
Common Causes & Solutions
- Large or Complex BIM Models: Load smaller view or simplify the model; use section or cutaway views to reduce rendering load
- Background BIMcloud Sync: Pause BIMcloud sync or adjust update frequency in settings
- Outdated Viewer Version: Update ARCHICAD Reader to the latest build from Graphisoft official sources
- Corrupted Cache or Previews: Clear viewer cache and reset previews via settings
- Memory Leaks in Idle State: Restart ARCHICAD Reader periodically; monitor with Task Manager
- Incompatible File Formats: Ensure files are valid ARCHICAD formats (.pln or BIMx) and not corrupted
Quick Fixes:
1. Quick Fixes:
2. 1. Open ARCHICAD Reader Task Manager in-app and identify heavy tabs or views
3. 2. Clear cached previews and recent files from settings
4. 3. Disable unnecessary BIMcloud sync in preferences
5. 4. Check for software updates and install the latest version
6. 5. Restart the viewer after updates
7. 6. Ensure hardware acceleration is enabled/disabled as needed
Frequently Asked Questions
Is archicad-reader.exe safe?
Yes, archicad-reader.exe is safe when obtained from Graphisoft or a trusted distributor and located in C:\Program Files\GRAPHISOFT\ARCHICAD Reader with a valid signature.
Why is archicad-reader.exe using so much CPU?
High CPU usage is usually related to complex BIM models or background BIMcloud synchronization. Use the internal task manager to identify the culprit and pause sync or simplify the view.
Can I uninstall archicad-reader.exe?
Yes. You can uninstall ARCHICAD Reader via Windows Settings -> Apps. Your BIM data remains stored in the main Archicad project files if not synced.
Can I disable archicad-reader.exe?
Yes, you can disable archicad-reader.exe from starting with Windows, but doing so will prevent quick previews of ARCHICAD files until you re-enable.
Why does archicad-reader.exe start automatically?
ARCHICAD Reader may launch automatically when opening ARCHICAD projects or when BIMcloud is configured for background updates.
What is ARCHICAD Reader used for?
ARCHICAD Reader is designed to view BIM data in read-only mode. It renders 3D views and 2D drawings without altering the original project files.