"Windows XP 64-Bit" typically refers to . This is not the same as the standard 32-bit version (which supports up to 4GB RAM). The x64 Edition is based on Windows Server 2003’s kernel and supports more than 4GB of RAM and 64-bit processors (AMD64 or Intel EM64T).

Most users remember Windows XP as the 32-bit operating system that dominated the early 2000s. However, in 2005, Microsoft released . This was a significant departure from the standard 32-bit version (x86).

Windows XP is an "End of Life" (EOL) product. It does not receive security updates. If you connect a Windows XP 64-bit machine to the open internet without a robust firewall or strict isolation, it will likely be infected within minutes by automated bots scanning for vulnerable IP addresses.