: A clean install, by default, does not touch data on drives other than the one on which the OS is being installed. Your other drives should remain intact.
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Myth: "If I clean install Windows, it deletes everything on every hard drive I own." Reality: It only deletes what you tell it to delete. does clean install wipe all drives
: Some automated installation methods or scripts might be configured to erase or format additional drives. Always review the installation options and confirm before proceeding. : A clean install, by default, does not
A clean install of Windows automatically wipe all of your drives; it primarily targets the specific partition or disk you select for the installation. : Some automated installation methods or scripts might
Windows occasionally places vital "boot manager" files on a secondary drive instead of the primary SSD. If that secondary drive is ever removed or fails later, the computer will not start, even if the primary OS drive is healthy. Clean Install vs. Reset This PC