Hi,

I am trying to upgrade PowerShell version 2 to version 3 on Win7 x64 bit OS using update (KB2506143) but i won't be able to update it and when i checked system log file it shown an error:

Windows update "Update for Windows (KB2506143)" could not be installed because of error 2148204800 "No signature was present in the subject." (Command line: " "C:\Windows\SysWOW64\wusa.exe" "D:\Windows6.1-KB2506143-x64.msu"  ").

Also i tried to install update for PowerShell version 4 and it also failed to install.

• Edited by Gomesh S 22 hours 14 minutes ago

hiii,

First try to resolve it using Microsoft update readiness tool, if it is not working then follow this technet blog:

http://blogs.technet.com/b/joscon/archive/2010/05/26/using-checksur-and-update-packages-to-fix-corruption.aspx

Regards