Try also these advices
1.Make sure data & time in OS and in BIOS is the same and correct
2.Disconnect computer from internet and try again install standalone versions (normal through double click on install)
3.Disable add-ons and reset IE
a)
Internet Explorer - Enable or Disable Toolbars and Extensions Add-ons
b)
Internet Explorer - Reset
4.If you have any 3p programs to managing network connections,any ip blocker,popup blocker then uninstall them too.
if it also fails:
I found on MS Technet one person with the same error said helped him rearming system + Windows Genuie Validation although he seemed had no any problem with activation -strange
1.Run
cmd.exe with elevated previlliges (right click on cmd.exe as admin) and type:
slmgr -rearm
wait patiently untill appear popup with message about succesfully making command +restart,next try install updates (standalone versions)
If it also fail run Validation tool
Genuine Microsoft Software
Ultimate solution if really nothing help is to make repair install
Repair Install