New laptop, old hard drive - infinite loop on startup

You can also copy out your files from the unbootable old HD using the Win7 installer or Repair CD to Copy & Paste - in Windows Recovery Console
or by booting Paragon rescue disk to recover data.

You can make the old HD bootable by finding a copy of Paragon Adaptive Restore CD to boot and run P2P adjust on the old Win7 installation. You can also save a backup image of the old HD using Acronis True Image with Universal Restore (version 2010 and older) to restore to the new HD or back to the old HD using the Universal Restore feature. These two methods will make Win7 bootable on new hardware if the old hardware isn't available to SysPrep to move HD to another computer

The boot disks can copy out his files on the new hardware.

The methods I gave to adjust his old HD to boot on new hardware were specifically for when the old hardware isn't available to SysPrep.