Can the Power Mac G5 run Windows?
The Power Macintosh G5 series is capable of running Windows through emulation using a program like Microsoft Virtual PC 7, but it cannot boot Windows or run Windows via virtualization like the Intel-based Macs. If you need a system capable of running Windows, you would be best served with an Intel-based Mac or a Windows PC. For more on running Windows on Intel-based Macs, please also check out the Windows on Mac Q&A.