Recently Internet Explorer was "replaced" by Edge in some versions of Windows 10.
"Where is my beloved Internet Explorer? Internet Explorer is Gone! Oh, No!"
I noticed that the solution used by Microsoft was to to add an add-on in Internet Explorer.
So I ran IExplorer "InPrivate" (right click on the IExplorer shortcut and choose InPrivate Browsing), then I clicked Manage add-ons (via Internet Options-> Programs)
There I saw an add-on called IeToEdge. This way I saw its name and where is stored
I propose two workarounds, both of them verified:
1) First I renamed the Exe file
To do that, I went to the folder pointed (in my case was C:\Program Files (x86)\Microsoft\Edge\Application\110.0.1587.63\BHO - but the version number could be different on other machines, and I've even found more than a single such folder, depending on how many updates the machine has), and renamed ie_to_edge_stub.exe into something else (like ie_to_edge_stub.exe.old)
2) Another approach was to leave the EXE file untouched, and delete the key from registry.
The appropriate key is located here: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects, where I searched for a key that contains IeToEdge.