OS Detect is a small utility software providing a simple method for determining whether the computer in use runs a 32-bit or a 64-bit operation system. The tool does not require any installation or setup and displays the information immediately after starting.

The advantage of using the software is that even users with little experience in using the computer will be able to establish one of the basic specifications of the operation system. This information may be useful before attempting to install certain software. For example, it may provide useful information if a software is available in both 32-bit and 64-bit versions, and only one of the versions is applicable.