There’re mainly 3 ways to setup ERPNext on Windows. (You cannot install ERPNext directly on windows, you have to use some kind of VM or WSL)
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Windows Subsystem for Linux > [Tutorial] How To install ERPNext V12 on windows 10 home / Pro WSL ubuntu 18.04LTS
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Linux virtual machine > https://erpnext.org/download
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Docker (My personal choice) > GitHub - pipech/erpnext-docker-debian: Self-contained ERPNext Docker Image base on Debian or GitHub - frappe/frappe_docker: Docker images for production and development setups of the Frappe framework and ERPNext
Cheers!