Different builds of Windows

Question: I’ve been hearing a lot about the second edition of Windows 98. I just bought a new computer. How can I tell if whether the second edition of Windows 98 is already installed on it? – Charles

Answer: You can tell which version of Windows you have by right-clicking on the My Computer desktop icon and selecting Properties on the small menu that will open.
Under the System heading, you’ll see Microsoft Windows 95, or Microsoft Windows 98, or Microsoft Windows 98, Second Edition, plus a version number and build number.

Here’s a clip-and-save list, to help you understand the builds:

1. 4.00.950: the original Windows 95 (if the the build number is 4.01.970, it’s Windows 95 plus the Active Accessibility client)
2. 4.00.950A (build 4.00.950): the original Windows 95 with service pack 1 installed
3. 4.00.950B Windows 95 OSR2 version (build 4.00.1111): Windows 95 installed by a PC vendor
4. 4.00.950B Windows 95 OSR2.1 (version 4.03.1212-1214): Windows 95 installed by a PC vendor with a USB patch available. It will appear as USB Supplement for OSR2 in the Add/Remove Programs icon. This is not installed by default.
5. 4.00.950C (version 4.03.1214): Windows 95 OSR 2.5 Windows 95 installed by a PC vendor with a USB patch also installed.
6. 4.10.1998: The original Windows 98
7. 4.10.2222 A: Windows 98 Second Edition