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Лог удаления .NET Framework

Код:

OS Version = 6.1.7600, Platform 2
OS Description = Windows 7 - x64 Ultimate Edition 
CommandLine = "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\SetupCache\Extended\Setup.exe" /repair /x86 /x64 /parameterfolder Extended
TimeZone = Московское время (зима)
Initial LCID = 1049
Using Simultaneous Download and Install mechanism
Operation: Repairing
Package Name = Microsoft .NET Framework 4 Extended Setup
Package Version = 4.0.30319
User Experience Data Collection Policy: Disabled
Operation updated to: Uninstalling
Logging all the global blocks

Pre-Installation Warnings:
Удаление Microsoft .NET Framework может привести к нарушению функционирования некоторых приложений.

Number of applicable items: 3
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\SetupCache\Extended\netfx_Extended.mzz - Signature verification for file netfx_Extended.mzz (C:\Windows\Microsoft.NET\Framework64\v4.0.30319\SetupCache\Extended\netfx_Extended.mzz) failed with error 0x800b0001 (Неизвестный поставщик доверия.)
No FileHash provided. Cannot perform FileHash verification for netfx_Extended.mzz
File netfx_Extended.mzz (C:\Windows\Microsoft.NET\Framework64\v4.0.30319\SetupCache\Extended\netfx_Extended.mzz), failed authentication. (Error = -2146762751). It is recommended that you delete this file and retry setup again.
Final Result: Installation failed with error code: (0x800B010B), "Общая ошибка доверия. " (Elapsed time: 0 00:00:09).(Elapsed time: 0 00:00:09).