I am trying to get my daughters computer going. It had a problem and she ran boot disk & drivers, I connected to internet and tried up dating. It started updating and just quit up dating. I could not get it to finish updating and it did not act right. I tried running boot disk again and got system stopped c000021a fatal system error status 0x00000080 Every time i turn it on it says system starting and then same error. cant reboot cant do any thing. HELP?