i am having a connection issue following update from windows 8 to 8.1.
I contacted windows support and they acknowledged the problem and told me that it would cost me $149 to fix.
if I wanted to fix it myself I would have to run sfc/scannow at command prompt.
I did this for ...yes system files corruption.
if I didn't pay them, the other option is to find someone with an uncorrupted file and copy and past into my comp.
I view this as blackmail..
they upgrade a defective product and then attempt to extort cash to fix there product...
very very sad indeed.
I have already ordered a mac.
I will never own another windows based product.
I hope the company go under.