The short answer is . According to AnyDesk's official documentation, Windows XP SP2 and later are indeed supported operating systems, alongside Windows Server 2003 SP2 and later, as well as newer versions like Windows 11 and macOS 10.13 High Sierra. AnyDesk is also noted to run across a broad spectrum of Windows versions from XP, 7, 8, 10, to 11.
Windows XP Firewall will block AnyDesk. Go to Control Panel → Windows Firewall → Exceptions → Add Program → Browse to C:\Program Files\AnyDesk\AnyDesk.exe → Add.
I can provide specific registry files or configuration steps based on your setup. Share public link