Cannot Download Internet Explorer 11 In Windows 7 Laptop.

I tried to download Internet Explorer 11 for Windows 7 but got a message saying;
Internet Explorer did not finish installing.
Set up can't continue because a more recent version of Internet Explorer is installed
on your computer.
That was news to me, so I decided to check which version is installed.
Thing is, I can't find Internet Explorer listed anywhere, not in Programmes or in
Revo Uninstaller.
Would appreciate any help.
Thanks.