What is the maximum RAM limit of a Windows 32-bit version?

The maximum RAM limit for a Windows 32-bit version is 4GB. This limitation is rooted in the architecture of 32-bit systems, which can only address a maximum of 2^32 memory addresses. This theoretical maximum results in 4GB (4,294,967,296 bytes) of addressable memory space.

In practice, even less than 4GB of RAM may be usable due to system reserves and hardware requirements, which can reduce the amount available to the operating system and applications. As a result, while a 32-bit Windows operating system can recognize up to 4GB, the actual usable amount often falls slightly below this threshold.

To elaborate, options like "no limit" or higher capacities such as 8GB and 32GB exceed the maximum addressing capability of 32-bit architecture, confirming that the 4GB ceiling is a fundamental characteristic of 32-bit systems. Hence, 4GB is the correct and recognized limit for RAM in a Windows 32-bit version.