Error code 40 generally points to a disk permission or partition map issue. The 4033 sub-code is unique to Bootcamp on macOS High Sierra, Mojave, Catalina, Big Sur, and Monterey. It translates to: "The disk cannot be partitioned because some files cannot be moved."
A: Only on Macs with a T2 chip (2018-2020 Intel models). For most older Macs, Windows 10 is the stable choice. bootcamp 40 4033 windows 10 install
A: You skipped the Boot Camp driver installation (Step 7 above). Boot into macOS, re-copy the WindowsSupport folder to USB, and run Setup.exe in Windows. Error code 40 generally points to a disk
A: Time Machine re-creates snapshots automatically. Either keep Time Machine off during the entire Boot Camp process (just a few hours) or use Solution 4 (manual container resize). For most older Macs, Windows 10 is the stable choice
By systematically deleting local Time Machine snapshots, disabling FileVault, repairing the disk via Recovery Mode, or manually resizing the APFS container, you can defeat this error in under 30 minutes.