It may also be a good idea to switch to a more modern operating system (and a 64-bit at that, since ARCHICAD is now 64-bit only).
Windows XP is 15 years old, which is a very old age for an operating system.
Also, Microsoft has ceased support for Windows XP last year so it does not issue patches for it. This means that your system is much more vulnerable to viruses.
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Loving Archicad since 1995