i had this problem then it returned to normal and now my computer is sitting on "Windows is starting up" and doing nothing strange that its only a few days this exact problem happening

i had the same thing happen but then i ran scans 4 times and disabled my firewall and start Windows firewall again and it started slowly and then eventually to work fine again

the firewall and...

i checked and they both are already enabled to automatic and are started this makes me think its not this causeing the problem :S

also, I just went to system restore and noticed something strange,...

Sorry, but this will be seen as grave digging or what ever its called BUT I am having the same problem tried all of the above in the question and nothing I am able to access it how ever by remote...