Acer Veriton S461 & M661 Microsoft Windows XP (32-Bit) System Recovery CD Disc. This disc can be used to reinstall Windows XP on your Acer PC, Laptop or Notebook. The software included on this Recovery CD was preinstalled on your hard drive at the factory and may only be used for backup and recovery of your Acer computer system.
 
Part Number: 90.AD381.ST2
Compatible Part Number: 90.AD381.ST3  90.AD381.ST4
Compatible Models: Acer Veriton S461 M661

Please Note: This product Does Not include the COA (Certificate of Authenticity) or the registration number, it is the original Acer Reinstall / Restoration disc only. You should have your original COA attached to your machine.