Trying to install Windows on a laptop that had Linux on it (and worked fine), for a nonprofit office that needs Windows, Word + Excel + Powerpoint, and a browser. Bringing it in with Linux was a nonstarter, even on Ubuntu with the various FOSS alternatives as icons on the desktop.
So I have to ask if anyone has advice. I’ve tried Windows 10 and 11 ISOs. It always fails when I do “custom install,” delete partitions, and tell it to install. Secureboot is on & keys reset, TPM on. BIOS is updated.