WINDOWS 7 / 10 INSTALLATION:

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Anonymous11 March 2014 at 09:14

I'm on Windows 7 (64bit), IE11 installed.
First obtain a copy of iexplore.exe v8.0
Created the following path "C:\Program Files\Internet\" and put the IE8 iexplore.exe there.

Navigate to registry key: HKEY_LOCAL_MACHINE \Software \Microsoft \Windows \CurrentVersion \App Paths \IEXPLORE.EXE. 

Then I temporarily changed the default string in the registry to:

Default = C:\Program Files\Internet\iexplore.exe
Path = C:\Program Files\Internet;

I had to use a different path because I couldn’t change the name on the current iexplore.exe to temporarily use the old one. I then ran the setup without any problem. 

IMPORTANT: After the installation was completed I changed back to the original values in the registry.

Win10 64-bit original values:
(Default) = C:\Program Files\Internet Explorer\IEXPLORE.EXE
Path = C:\Program Files\Internet Explorer;

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Source URL:
http://psekb.blogspot.com/2013/03/unable-to-install-pse-on-windows.html