If you are installing from backups (ISO files) rather than physical discs:
This is a popular community workaround that acts as a "marker" to fool the game's check. NFS Underground 2 installation folder (where SPEED2.EXE is located). Create a new text file in this folder. the file to exactly (all caps) and remove the Please Insert Disc 2 Nfs Underground 2
Below is a guide on why this happens and how to resolve it on modern systems. Why Does This Error Happen? Dual-Disc Format If you are installing from backups (ISO files)
Since modern Windows cannot read the old DRM, many players replace the original launcher with a modified version. Please Insert Disc 2 Nfs Underground 2