Powershell won't open, Powershell ISE throws exception upon start

Question

I am running Windows 7 SP1.

When I try to start Powershell (x64) or Powershell the window will appear for less than a second and then disappear.

When I try to start Powershell ISE (x64) I get an application error "The exception unknown software exception (0xe0434352) occurred in the application at location 0x7568c44d."

When I try to start Powershell ISE I get an application error "The exception unknown software exception (0xe0434352) occurred in the application at location 0xfd96adad."

I have tried repairing .Net 4.5 and I have tried reinstalling Windows6.1-KB2506143-x64.msu.

When trying to install KB2506143-x64.msu I get "The update is not applicable to your computer."

When trying to make sure the old powershell is uninstalled I am unable to find KB2506143 in the list of installed updates.

Answer 1

This question is outside the scope of this site and needs to be asked either on Technet or MSDN

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