Problem in net frame work 4

i was going to install windows ne framework 4
but during installation , my pc has shut down by accident
i tried to install or uninstall with no help
what i should do ?
part from log error
OS Version = 6.1.7601, Platform 2, Service Pack 1
OS Description = Windows 7 - x86 Ultimate Edition Service Pack 1
CommandLine = D:\4aa9643dd5f10e93fd6a20\\Setup.exe /x86 /x64 /ia64 /web
TimeZone = Pacific Standard Time
Initial LCID = 3073
Using Simultaneous Download and Install mechanism
Operation: Installing
Package Name = Microsoft .NET Framework 4 Setup
Package Version = 4.0.30319
User Experience Data Collection Policy: Disabled
Number of applicable items: 10
Possible transient lock. WinVerifyTrust failed with error: 2148204800
Possible transient lock. WinVerifyTrust failed with error: 2148204800
C:\Users\ADMINI~1\AppData\Local\Temp\Microsoft .NET Framework 4 Setup_4.0.30319\netfx_Core.mzz - Signature verification for file netfx_Core.mzz (C:\Users\ADMINI~1\AppData\Local\Temp\Microsoft .NET Framework 4 Setup_4.0.30319\netfx_Core.mzz) failed with error 0x800b0100 (No signature was present in the subject.)
No FileHash provided. Cannot perform FileHash verification for netfx_Core.mzz
File netfx_Core.mzz (C:\Users\ADMINI~1\AppData\Local\Temp\Microsoft .NET Framework 4 Setup_4.0.30319\netfx_Core.mzz), failed authentication. (Error = -2146762496). It is recommended that you delete this file and retry setup again.
Final Result: Installation failed with error code: (0x800B010B), "Generic trust failure. " (Elapsed time: 0 00:00:28).
Answer #1
go to run type regedit – HKEY_LOCAL_MACHINE – SOFTWARE – Microsoft – then u can see .NETFramework folder , just delete it and then try to install.
Answer #2
thanks it’s work
[solved]
Answer #3
no problem mate
Answer #4
sorry another problem appear
when i try to run a prog depend on net frame work
i shows me this problem

what can i do ?
Answer #5
i guess .net not installed properly or the registry messed up!!
check this
http://support.microsoft.com/kb/976982/en-us
install .net again!!
or goto the registry set the path manually [if possible]
or it maybe the problem with compatibility!!
install lower version of .net n try to use MeGUI