My mom bought a used laptop absolutely riddled with spyware, linux isn't an option
Install official version from Microsoft website.
Open PowerShell;
irm https://massgrave.dev/get | iex
This authenticates Win and/or upgrades version Home/Pro
Windows Debian edition is in reality the most stable and privacy focused Windows yet.
Find out what version of windows that laptop ships with, and install that. Windows licenses have been tied to mobos for a while, there's a good chance it'll just activate. If you need an installer, you can download ISOs and tools to make a bootable USB from Microsoft's site.
Like using a puncture repair kit and duct tape to fix a condom after sex.
Just put one of the Linux distros on it that look like Windows. Install LibreOffice and lookalike programs.
And No, I don't care why you think you can't use Linux.
https://winaero.com/download-windows-10-enterprise-iso-with-media-creation-tool/
same works for windows 11
activation: https://github.com/massgravel/Microsoft-Activation-Scripts/releases
Scratch/Reuse of a Win7 key at work and have a genuine copy.
No money went to microsoft either way and you don't need external tools.