https://www.google.cz/search?client=opera&q=ERROR+ KB982670&sourceid=opera&ie=utf-8&oe=utf-8&channel= suggest#hl=cs&client=opera&hs=C1I&tbo=d&channel=su ggest&sclient=psy-ab&q=ERROR+KB982670&oq=ERROR+KB9 82670&gs_l=serp.12...0.0.0.55324.0.0.0.0.0.0.0.0.. 0.0...0.0...1c.Ud9mTTTTNbk&pbx=1&bav=on.2,or.r_gc. r_pw.r_qf.&bvm=bv.41524429,d.bGE&fp=b07e536eb10c3e dc&biw=1350&bih=709
Osobně bych zkusil odinstalovat "hloubkově" v Revo Uninstaler vše .NET Framework a nainstaloval jej znovu.