GRJ

I have been suffering with this error for a very long time. I can no longer run windows update due the error code 0x800f0831. I have ran a deep scan 3 times each lasting for 3 hrs plus and I still cannot get it to work, the error is really dug in. A company called Restoro.com looked and said there is a something imbedded but they did not locate it, does anyone know why Kaspersky cannot find it please