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Starting with Windows 10 version 1903, Windows 10 has a minimum storage requirement of 32 Gigabytes on the desktop.

Whether a device may run Windows 10 is determined by its hardware. Microsoft maintains a list of minimum hardware requirements for Windows 10 that defines certain types of hardware components or requirements that Windows 10 devices need to support.

The company notes that devices need to meet these requirements to boot and run Windows 10, update and service the operating system, and provide a "baseline user experience".

The specification is designed for hardware manufacturers, e.g. OEMs, ODMs or SoC vendors, for the most part, but it is useful to home users and administrators as well.

The minimum requirements for desktop editions of Windows 10 apply to all editions including Home, Pro, and Enterprise editions.

Processor and memory requirements have not changed. Windows 10 desktop editions require at least a 1 GHz processor or SoC that is compatible with x86 or x64 instruction sets, supports PAE, NX, and SSE2, and supports CMPXCHG16b, LAHF/SAHF, and PrefetchW for 64-bit operating system installations.

Memory-wise, Windows 10 requires at least 1 Gigabyte of memory for 32-bit versions and 2 Gigabytes of memory for 64-bit versions.

The storage device size has been adjusted for Windows 10 version 1903. Previous versions of Windows, e.g. Windows 10 version 1809, required at least 16 Gigabytes of storage for 32-bit versions and 20 Gigabytes or greater for 64-bit versions.