Ideally Windows XP (32-bit) or Windows 7 (32-bit) . While it can run on newer systems via virtual machines, native 32-bit environments provide the most reliable driver support.
I’ve been running Diagbox 7.01 on an old Windows 7 laptop for about six months now, specifically for a 2012 Peugeot 308 and a 2008 Citroën C4. Here is my take on why this specific version is still popular. diagbox 7.01
While there are many newer versions (up to v9.xx), is often the "baseline" for many stable offline installers. It serves as the foundation from which many users apply "update packs" (like v7.57 or v7.62) to expand vehicle coverage without needing a constant internet connection to PSA servers. Ideally Windows XP (32-bit) or Windows 7 (32-bit)
Diagbox is powerful software. Improper use of telecoding or configuration features can disable vehicle safety systems or cause engine failure. Always back up your current configurations before making changes. Here is my take on why this specific
Many technicians prefer a dedicated "garage laptop" with a fresh install of Windows 7.