How to Clean Autodesk 3ds Max Cache & Temporary Files
Location & Quick Verdict
%LocalAppData%\Autodesk\3dsMax\2025 - 64bit\cache, temp, and crash_logs
Autodesk 3ds Max writes temporary 3D mesh tessellation files, G-code preview buffers, autosave recovery snapshots, and OpenGL/Direct3D viewport shader caches to %LocalAppData%\Autodesk\3dsMax\2025 - 64bit.
How Timeline Previews, Conform Audio & Render Scratch Fill Autodesk 3ds Max Cache & Temporary Files
Non-linear video editors (NLEs), streaming encoders, 3D DCC tools, and DAWs continuously write uncompressed audio conform files (.cfa), waveform peak indexes (.pek), proxy transcodes, and frame-accurate undo scratch into %LocalAppData%\Autodesk\3dsMax\2025 - 64bit\cache, temp, and crash_logs. Even after you finish exporting and archiving a client project, gigabytes of intermediate timeline render caches remain permanently allocated on your scratch disk.
On 4K/8K timelines or multi-scene streaming setups, Autodesk 3ds Max Cache & Temporary Files routinely consumes 1.5 GB – 9.5 GB of high-speed SSD space. Safely pruning stale media caches reclaims scratch bandwidth immediately; if you ever reopen an older project file, the application simply regenerates audio waveforms and timeline previews in the background.
# Inspect current disk footprint of Autodesk 3ds Max Cache & Temporary Files (Read-Only)
$target = "$env:LOCALAPPDATA\Autodesk\3dsMax\2025 - 64bit\cache, temp,"
Get-ChildItem -Path $target -Recurse -Force -ErrorAction SilentlyContinue |
Measure-Object -Property Length -Sum |
Select-Object Count, @{Name="SizeGB";Expression={[math]::Round($_.Sum / 1GB, 2)}}
Manual Cleaning Instructions
- 1 Completely close Autodesk 3ds Max and verify no background helper processes remain active in Windows Task Manager.
- 2 Press Windows Key + R, type %LocalAppData%\Autodesk\3dsMax\2025 - 64bit into the Run dialog, and press Enter.
- 3 Open the Cache, Temp, or Logs subdirectories, select the cached files (Ctrl + A), and press Shift + Delete.
- 4 Relaunch Autodesk 3ds Max (or use SWEEPR Cleaner to purge all Autodesk 3ds Max cache directories automatically in one click).
Note: If Windows alerts that a file is in use or locked by a background process, close the associated task in Task Manager before deleting, or use SWEEPR Cleaner to release locked handles safely.
Sub-Folders & Cache Locations Breakdown for Autodesk 3ds Max Cache & Temporary Files
Modern Windows applications and system services split their disk footprint across multiple sub-directories (`Cache_Data`, `Service Worker\CacheStorage`, `Code Cache`, `GPUCache`, and `Crashpad\reports`). Review which sub-folders inside Autodesk 3ds Max Cache & Temporary Files are safe to purge and which files remain protected:
| Sub-Folder / Cache Location | Storage Role | Typical Footprint | Deletion Safety |
|---|---|---|---|
| %LocalAppData%\Autodesk\3dsMax\2025 - 64bit\cache, temp, | Primary Media Cache, Proxy Scratch & Render Previews | 1.5 GB – 9.5 GB | 🟢 100% Safe (Re-renders on Demand) |
| %LocalAppData%\Autodesk\3dsMax\2025 - 64bit\cache, temp,\Media Cache Files (*.cfa, *.pek) | Conformed Audio Waveforms & Timeline Peak Files | 2.0 GB – 25.0 GB | 🟢 100% Safe |
| %LocalAppData%\Autodesk\3dsMax\2025 - 64bit\cache, temp,\GPUCache & Code Cache | Hardware-Accelerated Viewport & UI Plugin Cache | 300 MB – 3.0 GB | 🟢 100% Safe |
| %LocalAppData%\Autodesk\3dsMax\2025 - 64bit\cache, temp,\logs & Crashpad\reports | Render Session Logs & Crash Dump Archives (.dmp) | 200 MB – 4.5 GB | 🟢 100% Safe |
| Project Timelines (.prproj / .drp / .blend) & LUTs | Source Footage, Edit Timelines, Presets & Exported Renders | Protected | 🔒 Protected — Never Touched |
Frequently Asked Questions
Is it safe to delete Autodesk 3ds Max Cache & Temporary Files?
Yes, 100% safe. Clearing Autodesk 3ds Max's temporary render and slice buffers frees 1.2 GB – 8.5 GB of C: drive space while preserving all printer profiles, filament presets, and saved 3D project files.
How much storage space will cleaning Autodesk 3ds Max Cache & Temporary Files free up?
Users typically reclaim 1.5 GB – 9.5 GB on Windows 10 and Windows 11 systems depending on update frequency and active cache retention in %LocalAppData%\Autodesk\3dsMax\2025 - 64bit\cache, temp, and crash_logs.
Will clearing Autodesk 3ds Max Cache & Temporary Files delete my video projects, drafts, or saved recordings?
No. Project timelines, source media clips, and exported videos are stored in your project folders—not in %LocalAppData%\Autodesk\3dsMax\2025 - 64bit\cache, temp, and crash_logs. If you reopen an active project after cleaning, the software automatically rebuilds any needed waveform peaks or preview frames.
Where is Autodesk 3ds Max Cache & Temporary Files located on Windows 10 and Windows 11?
It is stored at %LocalAppData%\Autodesk\3dsMax\2025 - 64bit\cache, temp, and crash_logs. You can paste that path directly into the Windows Run dialog (Win + R) or File Explorer address bar to inspect it.
Manual File Explorer vs. 1-Click SWEEPR Cleanup
| Feature | Manual Deletion | SWEEPR Cleaner |
|---|---|---|
| Locked File Handling | Fails on locked processes | Safe background release |
| Accidental Deletion Risk | Moderate (easy to delete wrong folder) | Zero (strict rules & hashes) |
| Safety Undo Rollback | None (Shift+Del is permanent) | 7-Day Automatic Rollback |
| Time Required | 10–20 minutes per app | < 60 seconds across 40+ areas |
Related Windows Cleanup Guides & Hidden Space Hogs
Clean Autodesk 3ds Max Cache & Temporary Files Automatically
SWEEPR Cleaner safely clears Autodesk 3ds Max Cache & Temporary Files along with 40+ other hidden app folders and leftover files in one click—covering up to 5 devices (Windows, Mac, Android & iOS) with a 7-day undo safety net.