Safe to Delete

SolidWorks Backup Recovery Files (.sldbak)

Space: 5 GB – 30 GB+ creative Windows
Quick Answer: SolidWorks creates .sldbak auto-save recovery copies of assembly and part files. Deleting old .sldbak files is safe.

Bottom Line: It is 100% safe to delete .sldbak files if your active .sldprt (part) and .sldasm (assembly) files open cleanly.

What are .sldbak Files?

Located in your SolidWorks auto-recover directory (or project folders), SolidWorks saves backup copies (filename.SLDBAK) during mechanical CAD editing.

How to Delete .sldbak Files

Get-ChildItem -Path "C:\SolidWorksProjects" -Filter "*.sldbak" -Recurse | Remove-Item -Force

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