Hi,
I have brand new ASUS Transformer TA100 which came with Windows 8 pre-installed.
I was unable to download or install any Windows updates.
I tried every way to fix it that I could find - no luck.
I re-installed three times - same problem every time!
Downloaded new original ISO from MS - same problem again.
Then I used "Windows Repair " which I let run over night.
Voila - Windows updates are working now.
On my Windows 7 Alienware M18R2, I usually have to use ACRONIS True Image every six months or so to get back to a good system.
This is due to the fact that I test a LOT of programs and they leave junk residue that can't be cleaned up.
I used "Windows Repair" and it found a lot of errors, repaired them and my system is running great again.
THANK YOU very much for such great software. 
