Trying to install "Windows 11 Insider Preview 10.0.26120.3073 (ge_release_upr)", fails due to free space

[Windows 11]

I'm trying to install "Windows 11 Insider Preview 10.0.26120.3073 (ge_release_upr)" on a pc with 10 GB free on the C: drive, 117 GB free on USB E: drive, and 902 GB free on local D:. The process notifies that there is not enough room, and leads me through disk cleanup. I deleted everything possible on C:. The process notes the other drives available to be used for space, but will not progress past the demand to free up space on C:. I've already moved the TMP and TEMP folders from the default C: location to the D: drive, and still get the same error. Any ideas to get this package installed?

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