Re: could I recover my os if S & Q partitions was damaged.
If you didn't burn recovery disks before your S and Q partitions were damaged you need to get them from Lenovo support. Depending on the reason your S and Q partitions are damaged they may wave charges for sending them as your R500 is still on warranty.
T500: Vista 32, 2.8GHz, 4GB RAM, 15.4" 1680x1050, 500GB 7200rpm, ATI Radeon HD3650 + Intel 4500MHD. T42: XP, 1.7GHz, 2GB RAM, 14.1" 1024x768, 250GB PATA, ATI Radeon 7500.