I am 14 years old and had given my old computer to my Grandpa about a year ago and I ended up wiping the computer and reinstaling Windows Vista on it the computer has been operating fine until recently. I have it set to automatically update Windows when needed now for a while for some unknown reason it will not update windows service pack 2 after many attempts. The computer is a Dell Insiron 1521 with a ADM turion 1.79 GHz processer with 4 GB of ram and has a 32 bit operating system. The start up system repair is not an option because I put the CD in and there was no repair option, and I have tried the check system readiness tool from the microsoft website but it was unsuccessful. It keeps giving me the error code ERROR_SXS_COMPONENT_STORE_CORRUPT(0x800737112).