How to Determine the Operating System of a Computer

Determining which operating system and what version of that system is running on your computer is important when troubleshooting issues and installing software. Operating systems vary depending on whether you have a Mac or a PC. Software is often developed to work on a specific version of an operating system. Verify your operating system before you purchase and install software. To determine which operating system you are running, follow a few simple mouse clicks.

Instructions

PC Users

1. Click the "Start" button from the button tray.

2. Click "Run" (Windows XP) or place your cursor in the "Start Searching" text box.

3. Type "winver.exe" and press "OK."

4. Review the operating system version and build in the "About Windows" dialogue box.

Mac Users

1. Click the "Apple" button in the upper left corner of the screen.

2. Click "About this Mac" or "About this Computer."

3. Review the operating system version and build.

References

• Installshield.com: How Do I Determine What Operating System Is on My Computer