Go to Settings > Storage. Ensure the VDI is attached under the "Controller: IDE" or "SATA" tree, and it's at the top of the boot order (System > Motherboard > Boot Order).
Since Microsoft does not officially provide Windows XP disk images, you have two legal options: Download Windows Xp Vdi For Virtualbox
Windows XP is copyrighted by Microsoft. Do not download pre-activated VDIs from untrusted sources. The proper legal use is: Go to Settings > Storage
To make Windows XP run smoothly in 2026, certain configuration tweaks are necessary: Go to Settings >
While official Microsoft mirrors for XP have been discontinued, you can find pre-configured VDI and VHD images from the following reputable community sources: Internet Archive (archive.org)