What is the process loading the computer so much? A few wrong indexes cannot be causing this. If the proccess is svchost.exe or something similar, google for it. I remember I had a similar problem once and Google really helped. If it's not a process it's very likely that your registry is messed up. RegSupreme helped me many times in such situations. Since your windows is 8 months old, it is much likely this to be the cause.