|It's no good saying "come on can someone please help" because nobody will see it unless they open this post and decide they can help. If they feel they are unable to help they will move on. Nobody is deliberately ignoring this post.|
I don't think it was "an error" that you saw, it was only advising you that without the f parameter the checking would be limited. I don't see how your brother could have caused disk errors but if you want to check type in exactly this (note the spaces):
If that doesn't help then type this instead:
This last one will take a long time to run through.
What exactly happened when you tried System Restore?
A factory restore will lose everything you have added since.
You could try looking in Device Manger to see if any errors are showing.
It is not easy to come up with a simple solution without knowing exactly what your brother got up to.
Please come back and let us know the outcome.